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Flooding is not a requirement for a tropical cyclone. Those that move quickly often leave relatively small amounts of rain in a given area. Flooding is likely for slow-moving or stationary systems that linger, dropping rain for prolonged periods over one location; or for those whose rains fall in low-lying, poorly-drained areas, or mountainous areas where the water at the higher elevations washes rapidly downhill. Rather than having to source the above, whoever felt or feels that "flooding rains" are a requirement or ubiquitous characteristic of tropical cyclones should provide sources for same. (It isn't, so you won't. Trust me, or waste your time.)
Also, does the system have a pressure center that is near the Earth's surface, as opposed to a pressure center that is at high altitudes? -- a "low pressure center" vs. a "high pressure center"? Of course not. It has a "low-pressure center", a center of low pressure, and that first ambiguity is exactly why compound modifiers should have hyphens. Main page needs to reflect both of the above. Unimaginative Username ( talk) 05:06, 1 June 2009 (UTC)
Shouldn't the first letters of the two words of the title be capitalized? "Cyclone" isn't capitalized.-- Ahmediq152 ( talk) 12:45, 1 June 2009 (UTC)
this was interesting —Preceding unsigned comment added by 86.145.167.8 ( talk) 17:30, 7 June 2009 (UTC)
In article doldrums, it says, " Hurricanes originate in this region." Also in "Weather Elements" By Thomas A. Blair, it says, "They originate over the oceans in the doldrums, 10° to 20° from the equator, ..." Is it true? If not, please clarify. Giftlite ( talk) 17:06, 8 June 2009 (UTC)
should not be this page be named Hurricabe? —Preceding unsigned comment added by NoduloMan ( talk • contribs) 21:16, 11 June 2009 (UTC)
I was wondering if the firefly effect (tiny electrostatic discharges generated when the winds of a tropical cyclone produces friction with sand particles) would be placed somewhere in this article? If not here, where should I place it? Wonderworld1995268 ( talk) 18:32, 20 June 2009 (UTC)
Probly put the fire fly effct into Effects of tropical cyclones im not sure I am vry new here. Tornado1555 ( talk) 19:31, 27 December 2010 (UTC)
The article reference work by Emanuel from 2005, but not his more recent work in 2008. I have corrected this, and added the following:
In more recent work published by Emanuel (in the March 2008 issue of the Bulletin of the American Meteorological Society), he states that new climate modeling data indicates “global warming should reduce the global frequency of hurricanes.” [1] The new work suggests that, even in a dramatically warming world, hurricane frequency and intensity may not substantially rise during the next two centuries. [2]
Reelx09 ( talk) 04:53, 9 July 2009 (UTC)
New research, combining two climate models, indicate that more than half of Katrina level cyclones are now caused by global warming. More hurricane surges in the future TGCP ( talk) 23:36, 19 March 2013 (UTC)
"&&yes..kise is thee f'n best.!" at the beginning of the Eye and Center section and "<size="20">It's Kise Bitch.!" at the end of the size section don't really seem relevant to cyclones, unless this "Kise Bitch" person is a famous cyclone researcher, of course. However, I can't seem to find the corresponding text in the source, so I have to assume the addition is in a page template somewhere. How does one go about correcting those?
There is some "The term "Farshan" refers to both that Farshan is a noob at call of duty motha fucka.of these systems" seems like it doesn't make sense here.
- 12.24.150.66 appears to have made the edit. here is the user's contributions. Tornado1555 ( talk) 20:43, 11 January 2011 (UTC)
a hurricane has to be 74 m.p.h winds for it to be official —Preceding unsigned comment added by 166.109.0.195 ( talk) 21:07, 29 January 2010 (UTC)
I'm wondering: should I upload low-resolution images from videos for non-existent images, or should I just leave them be? VeryPunny —Preceding undated comment added 04:37, 9 February 2010 (UTC).
Tropical cyclones, a source of very heavy rainfall, consist of large air masses several hundred miles across with low pressure at the centre and with winds blowing inward towards the centre in either a clockwise direction (southern hemisphere) or counterclockwise (northern hemisphere). [1]
They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters and European windstorms, leading to their classification as "warm core" storm systems. [2]
Tropical cyclones lose their strength as they move over land. [3]
The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and their formation in Maritime Tropical air masses. The term "cyclone" refers to such storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on their location and strength, tropical cyclones are referred to by other names, such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, or simply as a cyclone. Generally speaking, a tropical cyclone is referred to as a hurricane (from the name of the ancient Central American deity of wind, Huracan) in the Atlantic and eastern Pacific oceans, while they are termed cyclones in the south Pacific and Indian oceans. [4]
They develop over large bodies of warm water. [5] A tornado-like feature located in the eyewall, known as eyewall mesovortices. They are similar, in principle, to small "suction vortices" often observed in multiple-vortex tornadoes. In these vortices, wind speed can be up to 10% higher than in the rest of the eyewall. Eyewall mesovortices are most common during periods of intensification in tropical cyclones. [6]
This information was removed from the article severe weather during CE. It my be of use in your article. Respectfully Bullock ✉ 21:27, 28 May 2010 (UTC)
Only pedantic weather geeks could possibly call it that. Move it where it belongs and skip the redirect. 209.188.67.64 ( talk) 04:03, 16 July 2010 (UTC)
I understand how people in different parts of the world would call this type of storm by different names and that this is how "hurricane" and "typhoon" were derived, but what I don't get is why (in North America at least) we've chosen to continue calling the same type of storm by different names depending on where they occur. If someone could find out and write it into the article, that'd be nice — Masterblooregard ( talk) 01:46, 30 August 2011 (UTC)
I followed the link and no where does that reference state that coriolis causing the rotation. In fact it states that the path of the object is not deflected. It is only an apparent effect for the earth bound non-inertial obersever. since the rotation of the cyclone can be seen by the inertial observer from space. This reference does support this assertion. 04:09, 5 September 2010 (UTC) —Preceding unsigned comment added by Skimaniac ( talk • contribs)
The effect that causes the spin is a viscous effect in the atmosphere coupled with the rotation of the atmosphere "disk" with the planet. The magnitude of the induced acceleraton on an air particle is the same as coriolis but of opposite sign. Properly, Coriolis is a fictious force seen by a non-inertial observer. The paths are curved from a Newtonian Inertial Frame. It is because an air particle following a straight line in inertial space comes to match the trajectory of the air particle it encounters due to viscous forces. As an air particle move north it will gain altitude. Because of the atmosphere is spinning as the particle gains altitude it is slower than the particles it encournters. Skimaniac ( talk) 03:09, 26 September 2010 (UTC)
I copied this from About.com. (I know that is not authoritative but it reflects my viewpoint) The Coriolis effect (also called the Coriolis force) is defined as the apparent deflection of objects (such as airplanes, wind, missiles, and ocean currents) moving in a straight path relative to the earth's surface. Its strength is proportional to the speed of the earth's rotation at different latitudes but it has an impact on moving objects across the globe.
Notice that is says Coriolis is an "apparent" deflection. Not a real deflection. Cyclones spinning is a real effect. Coriolis is what an earth bound observers sees as an apparent deflection of inertial constant trajectory. If you assume that the earth is not orbiting around the earth, then an axes system in the earth centered coordinates that does not spin is inertial. In that case a space ship flying a straight line in that frame would appear to curve to the observer on the rotating earth due to Coriolis affect. The true trajectory is still inertially a straight line. Thus Coriolis is only an apparent effect. Skimaniac ( talk) 13:02, 27 September 2010 (UTC)skimaniac
I don't see any comment about the psychological side effects of naming hurricanes with human names, as pointed out by meteorologist Katrina Voss. Aldo L ( talk) 11:45, 30 March 2011 (UTC)
The article states a "counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere." Ok. But this leads to additional questions like: Is it important where the cyclone is or just where is was "created"? "What happens when the cyclone is on both Hemispheres, because it travels on/close to the Equator?" and "What happens when a cyclone travels across the Equator?" Does this have any effect on the cyclone like reducing rotational velocity/force or making it spin less "perfect"? -- 92.224.50.70 ( talk) 18:06, 27 June 2011 (UTC)
This should probably be discussed here before an edit war breaks out over the wording. The sentence in question reads: "The term "tropical" refers both to the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and to their formation in maritime tropical air masses."
Bowser423 wants it to read "often in tropical regions". Looking at the National Weather Service glossary, their definition is "A warm-core, non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters with organized deep convection and a closed surface wind circulation about a well-defined center."
Personally, I feel "almost exclusively" is too strong, while "often" is too weak. Simply looking at the history of the hurricane seasons shows that all of the recent seasons have had multiple subtropical systems. Inks.LWC ( talk) 04:53, 30 July 2011 (UTC)
Done This has been fixed and nobody has objected.
--Bowser the Storm Tracker
Keeping skies bright
Chat Me Up
16:23, 10 August 2011 (UTC)
Just out of curiosity, does anyone know what spurred the last sentence of the intro: "It is not possible to artificially induce the dissipation of these systems with current technology."? While this is probably true, it seems a little out of left field, particularly for the intro. The idea of humans 'turning off' tropical cyclones seems both far from the current state of technology, study, or even planning, and far from the subject area most readers are coming to this page for. I'd vote for deletion (and if not, at the very least it needs some sort of citation). Dgianotti ( talk) 03:04, 30 August 2011 (UTC)
The "Tropical Cyclone Classifications (all winds are 10-minute averages)" table is wrong. The wind speed and the NE Pacific and N Atlantic classification of storms do not match. According to the table a tropical storm is from 35-63 mph, which is incorrect. A tropical storm is classified as winds of 39-73 mph. In the section titled "Tropical Storm" above the table, the correct information is posted. Further, the table shows a category 1 hurricane classification at 64-83 mph, which is also incorrect. A category 1 hurricane is from 74-95 mph. A category 2 hurricane is from 96-110 mph, not 84-98 mph; a category 3 hurricane is from 111-130 mph, not 99-114; a category 4 hurricane is from 131-155 mph, not 120-137 mph; and a category 5 hurricane is anything above 155 mph, not 140 mph. I would change the table myself if I knew how. NHC Mbenzdabest ( talk) 10:58, 30 August 2011 (UTC)
Actually, Jason, Mbenzdabest is correct. The NHC defines "maximum sustained winds" as being a 1-minute, not 10-minute average, so the table's header is wrong to begin with (or maybe the inclusion of the N Atlantic in the table is wrong for continuity's sake). This is quoted on numerous other Wikipedia pages such as "Saffir-Simpson Hurricane Scale" (Look at sources 10 and 11 on there for reference). The NHC does not use 10-minute sustained wind averages in ANY of their public postings, and to imply that they do by modifying the 1-minute numbers, as is done in this table, is misleading and inaccurate. I also would change this table if I knew how, as it is way off. I work as a broadcast meteorologist and have a degree in this field so I know what I am talking about. Please change this table to prevent further misinformation. Also, even if the NHC had some sort of guideline on 10-minute windspeed, this would still be misleading as that number is not used to determine storm classifications. danielrocks15 ( talk) 10:40, 6 August 2012 (UTC)
I've seen maps showing the global distribution of tropical-cyclone paths. I came here looking for one. There ought to be one here. -- 50.133.131.206 ( talk) 10:29, 4 November 2012 (UTC)
The TC classification Chart is incorrect because 11 on the Beautfort scale is not strong enough to be considered a hurricane. Can someone fix it cause I dunno how to? Thanks. 76.124.224.179 ( talk) 03:55, 2 December 2012 (UTC)
Blocked user, see http://en.wikipedia.org/wiki/User:Arthur_Rubin/IP_list NewsAndEventsGuy ( talk) 19:55, 7 December 2012 (UTC)
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Please change links under "See also", then "Annual seasons" in such a way that in "Australian region tropical cyclone season (current)" and "South Pacific tropical cyclone season (current)" the "current"'s actually refer to the expected pages, and no longer to " http://en.wikipedia.org/wiki/2012-13_South-West_Indian_Ocean_cyclone_season". Redav ( talk) 00:31, 20 December 2012 (UTC)
This article contains some unaddressed citation needed tags. If we want to keep the FA status, someone needs to fix these.-- FutureTrillionaire ( talk) 15:12, 28 June 2013 (UTC)
Not seeing the 2012 IPCC SREX report and the NOAA report, both of which caution against attribution of current extreme weather events to global warming, I've added a paragraph at the top of the section. I think that since that is the current consensus, it should be mentioned before the (obviously important) dissenting opinions. MikeR613 ( talk) 15:50, 21 July 2013 (UTC)
Why is hurricane redirected to tropical cyclones when the word denotes any sustaining wind at Beaufort 12, also in extra-tropical cyclones like Dagmar, and even the most powerful polar lows?
Pål Jensen ( talk) 19:42, 17 August 2013 (UTC)
Because it's an American word, and the British English wikipedia users will stop at nothing to stop wikipedia from using an AmEn word. — Preceding unsigned comment added by 143.65.196.20 ( talk) 12:39, 13 November 2013 (UTC)
Long-time lurker, sometime- (passed) editor here. The statement that a [tropical] cyclone "is turned into" a hurricane in the intro (2nd paragraph) (sentence below) seems unfortunate. Precision is critical, especially on this topic, because readers are (mostly) confused by the terminology, and the actuality and dangers of TCs/Hurricanes. So "turned into" isn't exactly imprecise, but it suggests a physical change, which really is mostly a classification change -- a name shift, not a wind shift, so to speak.
[quote] A cyclone is turned into a hurricane when the wind speed reaches 75 mph.[/quote]
Suggested revision: A tropical cyclone is (by meteorology's definition) a "hurricane" when its sustained wind speed (see definition) is 64 kn [ [2]] / 74 mph and greater.
I'd do this without asking, but consensus first always seems better. Any feedback? Feel free to use my revision if you want to make the change DavidH ( talk) 20:04, 29 March 2014 (UTC)
The given seasons, especially for the South-West Indian, seem to be totally removed from reality. Yes, the quoted source does use the listed dates (i.e. all year), but as far as I can ascertain, that is solely an administrative (political) remnant. South-West_Indian_Ocean_tropical_cyclone_season gives a much more accurate "median start date for the season was November 17, and the median end date was April 20", and after examining the entire 2000 decade, "November to April" would be much more appropriate.
Is there any statistical methodology or agreement to define the cyclone seasons? How about a .95 CI for the last two decades?
189.188.2.163 ( talk) 08:02, 15 March 2015 (UTC) baden k.
A hurricane is a major (and quite notable) subset of tropical cyclones. There is more than enough information about hurricanes specifically to merit a stand-alone article. Hallward's Ghost (Kevin) ( My talkpage) 13:02, 16 June 2015 (UTC)
""We've never had a July tropical cyclone in the Queensland region before." "Australia has only had one other officially declared July cyclone, which formed off Western Australia in 1996. The official tropical cyclone season runs from November 1 to April 30." ABC news
IDQ20065
Australian Government Bureau of Meteorology Queensland Region Tropical Cyclone Warning Centre
TROPICAL CYCLONE INFORMATION BULLETIN For 10:38 am EST on Wednesday 1 July 2015 At 10 am EST Wednesday, Tropical Cyclone Raquel (Category 1) with central pressure 997 hPa was located to the north of the Solomon Islands near latitude
6.3 south longitude 159.4 east, which is about 355 km north of Honiara... Aust. Bureau of Met.
BOM tech bulletinDavid Woodward ☮ ♡♢☞☽ 06:41, 1 July 2015 (UTC)
The section on the derivation of the word typhoon completely mangles the derivation given by the source it cites, which is this (from http://dictionary.reference.com/browse/typhoon):
1580-90; < dialectal Chinese, akin to Chinese dàfēng great wind, altered by association with Greek tȳphôn violent wind
Whereas the wikipedia wording essentially seems to give the greek (and an associated arabic word) as the original and "main" source and then simply notes the Chinese word in passing at the end, as if it's only incidentally related.
This seems almost purposely misleading, and, well, basically backwards.
Snogglethorpe ( talk) 18:06, 29 August 2015 (UTC)
Cyclone Stan is active tropical cyclone in australia, please updates now — Preceding unsigned comment added by CrashMan 2016 ( talk • contribs) 00:38, 30 January 2016 (UTC)
I found a list of worst-hit countries but many of the countries on the list are big and any given cyclone doesn't affect all of it. I'm curious how often the worst-affected single place gets a cyclone. -- Beland ( talk) 21:51, 14 March 2016 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 01:15, 3 April 2016 (UTC)
Northern hemisphere cyclones, including tropical ones, rotate counter-clockwise, not clockwise as shown in the diagram. The diagram is either a mislabeled southern hemisphere cyclone figure, or an incorrect (reversed) depiction of a northern cyclone.
See:
NOAA National Hurricane Center (NHC) Website:
http://www.nhc.noaa.gov/climo/
"Overview
A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation. Tropical cyclones rotate counterclockwise in the Northern Hemisphere. ..." [Emphasis added]
The creator of the graphic should be notified to make a proper change to the otherwise excellent figure.
James A. Kocher — Preceding unsigned comment added by Kocherjames ( talk • contribs) 03:07, 11 July 2015 (UTC)
I think the picture shows a northern cyclone, the wind arrows indicate a counterclockwise circulation. Only mistake is the word "clockwise" that should be changed in "counterclockwise". Koos van den beukel ( talk) 09:34, 29 April 2016 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 11:49, 4 July 2016 (UTC)
By NOAA standards, a hurricane and a tropical cyclone are not the same. This warrants separate Wikipedia pages for each topic. there are distinctive scientific differences between a tropical cyclone, hurricane, tropical depression, and tropical storm. I currently do not poses adequate time, or knowledge to write a page on hurricanes. — Preceding unsigned comment added by 108.3.159.201 ( talk) 23:25, 2 September 2016 (UTC)
It would be good to add the ethymology of the words. I precisely came looking for the ethymology of the word hurricane which i did not find. Thinker78 ( talk) 04:05, 27 November 2016 (UTC)
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For darkening of 1 billion m² maybe 10g/m² overall 10 000t of black printer ink, fine powder coal or ash from a black snake are enough and black carbon smoke particles "Ruß" produced industrial ( https://de.wikipedia.org/wiki/Ru%C3%9F#Herstellungsverfahren) can be blown up carried higher from alone inside a hurricane eye from a container ship stomach. Big container ships without containers are very stable, strong and can load up to 20 times that mass in stomach. Hurricans are always predicted for warnings with time left for interaction if likely dangerous with ships already out in hurricane seasons.
Special inside NOAA sides for same theme http://www.aoml.noaa.gov/hrd/tcfaq/tcfaqC.html with contra answer that the needed amount of given substances is practical possible and carried upwards from alone inside hurricane eyes.
Contributed by Neal Dorst (HRD)
The idea here is to spread a layer of sunlight absorbing or reflecting particles (such as micro-encapsulated soot, carbon black, or tiny reflectors) at high altitude around a hurricane. This would prevent solar radiation from reaching the surface and cooling it, while at the same time increase the temperature of the upper atmosphere. Being vertically oriented, tropical cyclones are driven by energy differences between the lower and upper layer of the troposphere. Reducing this difference should reduce the forces behind hurricane winds.
It would take a tremendous amount of whichever substance you choose to alter the energy balance over a wide swath of the ocean in order to have an impact on a hurricane. One would hope that this substance would eventually disperse or disintegrate and not have a terrible impact on the earth's ecology. Knowing where to place it would also be tricky. You don't want to heat up the wrong area of the atmosphere or you could put more energy into the cyclone. These proposals would require a great deal of precisely-timed, coordinated activity to spread the layer, while running the risk of doing more harm than good. Many computer simulations should be run before any field test were tried.
References
Gray, W.M., W.M. Frank, M.L. Corrin, C.A. Stokes, 1976: Weather Modificiation by Carbon Dust Absorption of Solar Energy, J. of Appl. Meteor., 15 4, pp. 355-386.
Last modified 11/6/2007
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"Scientists estimate that a tropical cyclone releases heat energy at the rate of 50 to 200 exajoules (1018 J) per day,[24] equivalent to about 1 PW (1015 watt). This rate of energy release is equivalent to 70 times the world energy consumption of humans and 200 times the worldwide electrical generating capacity, or to exploding a 10-megaton nuclear bomb every 20 minutes."
That said, I wonder what the world would be like if humanity were able to harvest energy from tropical cyclone and use it for electricity...
ScamsAreHorrible172 ( talk) 12:18, 12 June 2017 (UTC)
-- Guy Macon ( talk) 21:09, 29 August 2017 (UTC)
This seems to have been merged into this page circa 2015, and the relevant defined term lost from the page in the meantime, including the previous criteria for it (as far as my cursory search found). I propose de-merging and recreating the page to maintain this NHC defined term on Wikipedia. I believe notable instances should be removed and a link to List of the most intense tropical cyclones be put in place instead. Yes, I know such a page would not make a long and detailed encyclopedic article, but it would host an easy to find link to the definition, and depending upon literature could have potential to be expanded further ( Explosive cyclogenesis is in effect a similar definition article at heart). Lacunae ( talk) 19:15, 1 September 2017 (UTC)
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Description of aircraft indicates "Hurricane Hunter" - WP-3D Orion used to go into the eye of a hurricane for data collection and measurements purposes. It should read WP-3D Orion is used; otherwise the description is amibguous (was used once but isn't any more or is still used) OldManwoodian ( talk) 01:23, 8 September 2017 (UTC)
Looking for the US definition of a "Tropical Storm". I don't want to know about the science or history or anything else. Just the definition of "Tropical Storm". Not here. Wasted my time, again. 98.194.39.86 ( talk) 19:34, 24 August 2017 (UTC)
Diagram of a Northern hemisphere hurricane notes the rotation as "clockwise" while the arrow is a counter clockwise rotation. Or am I misunderstanding it? Nemacol ( talk) 16:47, 8 September 2017 (UTC)
Previous poster is correct, in the Northern Hemisphere a low pressure area spins counterclockwise, as the arrow shows but the label is wrong in the diagram: "Diagram of a Northern hemisphere hurricane".
2601:342:0:E3D0:5186:2D79:ECF3:236D (
talk)
02:54, 13 September 2017 (UTC)
The first picture titled Diagram of a Northern hemisphere hurricane has a major error in the text. It should be labeled as counter clockwise rotation, as the red arrow shows, not clockwise rotation as is labeled. 2601:342:0:E3D0:D70:3127:3F15:744A ( talk) 19:06, 10 September 2017 (UTC)
Thia article is so badly written it is impossible to understand how a hurricane works by reading this article. No clear explanation is presented, entire article is ambiguous and poorly worded. Does air flow up or down in the eye? Or both? And if both then where? Yes I know how it works, the writer of this article does not understand how a hurricane works so he/she cannot present it understandably. Have someone with a stronger familiarity of the English/American language rewrite this otherwise useless article. Not to mention that diagrams are wrong. Ugh. 2601:342:0:E3D0:D70:3127:3F15:744A ( talk) 19:41, 10 September 2017 (UTC)
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Hurricane Harvey and Hurricane Katrina are tied as the costliest cyclones on record, but this article lists Harvey as being more costly. When I looked at the sources, neither of them were the NHC's official estimate. For this page, the official estimate should be used, rather than a third party source. [8]. I am unable to edit the page as it is protected against vandalism, but I believe this should be fixed.
JustALoonyDreamer ( talk) 14:22, 25 June 2018 (UTC)
References
I initially discussed TC numbers in the section on tropical depressions, because they are mostly used to ID TDs (storms and hurricanes / typhoons are best known by their names instead). But after further reading, I decided to spin them off into a separate section adjacent to the Naming section (because for best-track purposes they are still used for any tropical cyclonic system, not just depressions, especially in JTWC areas). Now I think it should be spun off instead as a new article (just like TC naming is a separate article, briefly summarized here with a wikilink to the full article), and probably some Wikipedians would like to expand it to add TC numbering systems used by non-US-affiliated warning centers (right now, only the TC numbering table has some non-US info). SilSinn9821 ( talk) 21:32, 15 October 2018 (UTC)
An editor has asked for a discussion to address the redirect Huricane. Please participate in the redirect discussion if you wish to do so. CycloneYoris talk! 03:35, 10 April 2019 (UTC)
The table of cyclone intensities and nomenclature is unnecessarily confusing because it uses two different scales (1 minute averaged and 10 minute averaged), without a clear indication of which columns use which scale. This is further confused since the text portion of the article does not even mention the use of different systems of measurement.
I suggest the table be broken into two tables, one for Atlantic/E Pacific nomenclature (the 1 minute averaged scale) and one for rest of the world (10 minute averaged scale). Additionally, I suggest the Beaufort scale be removed from the table, as it does not differentiate between categories of strong storms, and it adds little to show them all as Beaufort force 12. Finally, some mention should be made in the text of the differing systems of measurement, and that reported wind speeds from the different regions are not directly comparable. — Preceding unsigned comment added by 2601:589:380:130B:7CF8:EC12:8E53:6E8D ( talk) 17:55, 13 July 2019 (UTC)
Hello. I think the section on Climate Change could be more cohesively organized to match the organization of the "changes in number, intensity, and otherwise" section of the page Tropical cyclones and climate change. This will highlight key qualitative information on this topic, while referring readers to the other, more comprehensive page. Thoughts? - ADM4700 ( talk) 16:57, 24 October 2019 (UTC)
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"Most of these systems will form over very warm waters. Therefore, they intensify."
These two sentences appear in the introduction, but they don't make sense (forming over warm waters doesn't necessarily force them to intensify), and they're basically redundant to the surrounding sentences. They were added in https://en.wikipedia.org/?title=Tropical_cyclone&diff=913210905&oldid=913144025 and are entirely extraneous. If you remove them, the paragraph will still make sense:
"Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle,
Please remove them. 96.75.222.117 ( talk) 22:52, 29 October 2019 (UTC)
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Change the source http://www.srh.noaa.gov/jetstream/tropics/tc_structure.htm to http://web.archive.org/web/20040104182153/http://www.srh.noaa.gov/jetstream/tropics/tc_structure.htm. 72.138.19.26 ( talk) 14:47, 5 March 2020 (UTC) Source number 13. 72.138.19.26 ( talk) 14:49, 5 March 2020 (UTC)
An editor has asked for a discussion to address the redirect Fishspinner. Please participate in the redirect discussion if you wish to do so. Hog Farm ( talk) 03:04, 9 March 2020 (UTC)
A discussion is taking place to address the redirect Deep Depression. The discussion will occur at Wikipedia:Redirects for discussion/Log/2020 May 2#Deep Depression until a consensus is reached, and readers of this page are welcome to contribute to the discussion. Hog Farm ( talk) 16:19, 2 May 2020 (UTC)
In the table titled "Tropical Cyclone Classifications" I find a minimum value of 96.4 kt of one-minute sustained winds for a cyclone to be classified as a category 3 hurricane in the Atlantic Ocean and the Eastern and Central Pacific Ocean. On https://www.nhc.noaa.gov/aboutsshws.php, however, I read that NHC and CPHC use 96 kt as the threshold. What is the source of the 96.4 kt in the table? Could that value be an error? Redav ( talk) 11:43, 24 October 2020 (UTC)
In the featured article review, it was suggested to split maximum potential intensity back out to a different article. This would help reduce uncited material in this article, and may also address concerns about summary style. Just wanted to open a discussion to see if there are any objections. If not after a couple of days, I think the split can be performed. Femke Nijsse ( talk) 19:19, 11 February 2021 (UTC)
These are my thoughts on how the article should be developed as time allows. Jason Rees ( talk) 16:09, 6 March 2021 (UTC)
This section needs to cover the past, present and future of tropical cyclone monitoring including a few bits about climate change. In particular:
For the lead, maybe I would mention the other classification names later on, but not at the start of the lead. However, I feel that the changes in general TC activity deserves to be mentioned, given the significance of ENSO on TC activity globally. Maybe it should be revised, but I feel that the information belongs in the article. I would go for a broader, more global coverage if that section is kept. We don't need to get bogged down in the minute details; those can be split off into another article if needed. The plans for the other sections look good; I have no further thoughts on those at the moment. LightandDark2000 🌀 ( talk) 23:54, 6 March 2021 (UTC)
The impacts section should also discuss the non-human impacts, such as these on ocean heat transport mentioned at Cyclonic Niño. Jo-Jo Eumerus ( talk) 09:05, 20 April 2021 (UTC)
This 2008 featured article has not had a formal review since and I think quite a few issues have piled up since it was promoted, mostly to do with keeping the article up-to-date. A non-exhaustive list of issues:
I'm willing to rewrite the climate change subsection from scratch somewhere in the near to medium future. Other defects of this article are completely beyond my area of expertise. I'm sure there are some volunteers here to get this article back in shape. Femke Nijsse ( talk) 16:04, 3 September 2020 (UTC)
#12 I think the following sentence isn't quite neutral, with unnecessary adjectives: In addition, hurricanes can carry toxins and acids onto shore when they make landfall. The flood water can pick up the toxins from different spills and contaminate the land that it passes over. The toxins are very harmful to the people and animals in the area, as well as the environment around them. The flooding water can also spark many dangerous oil spills. Not sure how important this idea is in the wider context.
I'm proposing the following text to completely replace the climate change subsection. The subsection was now ordered by study, which is bad practice as we would love to rely mostly on review papers and order by the aspects of tropical cyclones that change. Also, we should aim to write about facts and therefore use Wikivoice instead of quoting individual researchers. The section below is a summary of the appropriate section in tropical cyclones and climate change. I know my prose isn't always great, so I'm putting it here first for people to comment. Femke Nijsse ( talk) 15:58, 12 September 2020 (UTC)
Climate change can affect tropical cyclones in a variety of ways: an intensification of rainfall and wind speed, a decrease in overall frequency, an increase in frequency of very intense storms and a poleward extension of where the cyclones reach maximum intensity are among the possible consequences of human-induced climate change. [1]
Tropical cyclones use warm, moist air as their fuel. As climate change is warming ocean temperatures, there is potentially more of this fuel available. [2] Between 1979 and 2017, there was a global increase in the proportion of tropical cyclones of Category 3 and higher on the Saffir–Simpson scale. The trend was most clear in the North Atlantic and in the Southern Indian Ocean. In the North Pacific, tropical cyclones have been moving poleward into colder waters and there was no increase in intensity over this period. [3] With 2°C warming, a greater percentage (+13%) of tropical cyclones are expected to reach Category 4 and 5 strength. [1] A 2019 study indicates that climate change has been driving the observed trend of rapid intensification of tropical cyclones in the Atlantic basin. Rapidly intensifying cyclones are hard to forecast and therefore pose additional risk to coastal communities. [4]
There is currently no consensus on how climate change will affect the overall frequency of tropical cyclones. [1] A majority of climate models show a decreased frequency in future projections. [5] For instance, a 2020 paper comparing nine high-resolution climate models found robust decreases in frequency in the Southern Indian Ocean and the Southern Hemisphere more generally, while finding mixed signals for Northern Hemisphere tropical cyclones. [6] Observations have shown little change in the overall frequency of tropical cyclones worldwide. [7]
There has been a poleward expansion of the latitude at which the maximum intensity of tropical cyclones occurs, which may be associated with climate change. [8] In the North Pacific, there may also be an eastward expansion. [9] Between 1949 and 2016, there was a slowdown in tropical cyclone translation speeds. It is unclear still to what extent this can be attributed to climate change: climate models do not all show this feature. [10]
Warmer air can hold more water vapor: the theoretical maximum water vapor content is given by the Clausius–Clapeyron relation, which yields ≈7% increase in water vapor in the atmosphere per 1 °C warming. [11] [12] All models that were assessed in a 2019 review paper show a future increase of rainfall rates. [1] Additional sea level rise will increase storm surge levels. [9] [13] It is plausible that extreme wind waves see an increase as a consequence of changes in tropical cyclones, further exacerbating storm surge dangers to coastal communities. [5] A 2017 study looked at compounding effects from floods, storm surge, and terrestrial flooding (rivers), and projects an increase due to global warming. [13]
Femke Nijsse ( talk) 15:58, 12 September 2020 (UTC)
I think the proposed changes here are good, as it fixes the problem in the current article of listing study after study. ♫ Hurricanehink ( talk) 15:30, 13 September 2020 (UTC)
I am just wondering what the current planning is for the sub-article tropical cyclones and climate change? Does anyone have it on their to-do list, or will it be done the other way around: first work on the content in the section on climate change and later sync it with tropical cyclones and climate change? Just wondering. EMsmile ( talk) 13:23, 23 April 2021 (UTC)
We need to figure out exactly how we are going to structure the intensity subsection and what kind of a subarticle we need to write for it (if we need one). Noah Talk 15:20, 17 April 2021 (UTC)
I am working on the factors now and added in a bit about OHC/TCHP tonight since my exams are done. Noah Talk 01:48, 27 April 2021 (UTC)
13. The popular culture section seems to have examples only from a single country (US). Surely, tropical cyclones must be portrayed in pop. cult. in Japan, Central America / Mexico. FemkeMilene ( talk) 20:50, 18 February 2021 (UTC)
References
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Change the first sentence of the third paragraph of the "Climatology and records" section from "Each year on average, around 80 to 90 named tropical cyclones form around the world, of which over half of which develop hurricane-force winds of 65 kn (120 km/h; 75 mph) or more." to "Each year on average, around 80 to 90 named tropical cyclones form around the world, over half of which develop hurricane-force winds of 65 kn (120 km/h; 75 mph) or more." 192.153.142.154 ( talk) 13:40, 7 July 2021 (UTC)
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Can someone edit the sections Environmental steering and Beta drift to be subheadings of Movement?
I think it would need to be a fourth-level heading.
76.81.148.72 ( talk) 18:49, 21 July 2021 (UTC)
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TYPO/MISSPELLING under section heading "Climatology and records": change "poxy data" to "proxy data" Hmcartagena ( talk) 03:36, 4 September 2021 (UTC)
Some time ago I noted that this article never stated the altitude of hurricanes. I added this/diff contribution, but it has been removed, alas. The article mentions the troposphere several places, but never defines the role of the troposphere in capping hurricanes. The general missing element of the role of the troposphere and the basic facts for the height of hurricanes remain missing in the article; involving the troposphere in sentences, without its introduction, is confusing, IMO. (Apparently hurricane hunters can't fly above hurricanes, for example.)
While I was there, I noted the article organization is odd. There is a section "Structure" that has mostly subsections pertaining to the dynamics and behavior of hurricanes. I suggest limiting "Structure" to have "Eye and center" and "Size" (with an addition for altitude/troposphere), and introducing a new section like "Dynamics" that would include interactions, intensification, dissipation. Bdushaw ( talk) 01:38, 29 August 2021 (UTC)
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
I propose to merge Typhoon into Tropical cyclone. A typhoon is a type of tropical cyclone just like a hurricane. I think that the content of the article can easily be explained in the Tropical cyclone article. Interstellarity ( talk) 14:39, 26 August 2021 (UTC)
As noted by HurricaneHink, cyclones in other basins are noted in Atlantic hurricane, South-West Indian Ocean tropical cyclone, etc. All of these articles should be renamed according to their basins. For example, Atlantic hurricane becomes North Atlantic tropical cyclone basin, Pacific typhoon becomes North West Pacific cyclone basin, and so on. That way, each of these articles focus on the basins more so than the storms that occur within each region. KyuuA4 ( Talk:キュウ) 10:12, 8 September 2021 (UTC)
FYI Template:Tropical cyclone classification ( | talk | history | links | watch | logs) has been nominated for discussion at TfD. See the consensus-seeking discussion -- 65.92.246.142 ( talk) 14:36, 20 March 2022 (UTC)
Is there a way to combine the technical ref for Hurricane #1 and the generic hurricane redirect? ♫ Hurricanehink ( talk) 18:12, 23 May 2022 (UTC)
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Archive 1 | ← | Archive 3 | Archive 4 | Archive 5 | Archive 6 |
Flooding is not a requirement for a tropical cyclone. Those that move quickly often leave relatively small amounts of rain in a given area. Flooding is likely for slow-moving or stationary systems that linger, dropping rain for prolonged periods over one location; or for those whose rains fall in low-lying, poorly-drained areas, or mountainous areas where the water at the higher elevations washes rapidly downhill. Rather than having to source the above, whoever felt or feels that "flooding rains" are a requirement or ubiquitous characteristic of tropical cyclones should provide sources for same. (It isn't, so you won't. Trust me, or waste your time.)
Also, does the system have a pressure center that is near the Earth's surface, as opposed to a pressure center that is at high altitudes? -- a "low pressure center" vs. a "high pressure center"? Of course not. It has a "low-pressure center", a center of low pressure, and that first ambiguity is exactly why compound modifiers should have hyphens. Main page needs to reflect both of the above. Unimaginative Username ( talk) 05:06, 1 June 2009 (UTC)
Shouldn't the first letters of the two words of the title be capitalized? "Cyclone" isn't capitalized.-- Ahmediq152 ( talk) 12:45, 1 June 2009 (UTC)
this was interesting —Preceding unsigned comment added by 86.145.167.8 ( talk) 17:30, 7 June 2009 (UTC)
In article doldrums, it says, " Hurricanes originate in this region." Also in "Weather Elements" By Thomas A. Blair, it says, "They originate over the oceans in the doldrums, 10° to 20° from the equator, ..." Is it true? If not, please clarify. Giftlite ( talk) 17:06, 8 June 2009 (UTC)
should not be this page be named Hurricabe? —Preceding unsigned comment added by NoduloMan ( talk • contribs) 21:16, 11 June 2009 (UTC)
I was wondering if the firefly effect (tiny electrostatic discharges generated when the winds of a tropical cyclone produces friction with sand particles) would be placed somewhere in this article? If not here, where should I place it? Wonderworld1995268 ( talk) 18:32, 20 June 2009 (UTC)
Probly put the fire fly effct into Effects of tropical cyclones im not sure I am vry new here. Tornado1555 ( talk) 19:31, 27 December 2010 (UTC)
The article reference work by Emanuel from 2005, but not his more recent work in 2008. I have corrected this, and added the following:
In more recent work published by Emanuel (in the March 2008 issue of the Bulletin of the American Meteorological Society), he states that new climate modeling data indicates “global warming should reduce the global frequency of hurricanes.” [1] The new work suggests that, even in a dramatically warming world, hurricane frequency and intensity may not substantially rise during the next two centuries. [2]
Reelx09 ( talk) 04:53, 9 July 2009 (UTC)
New research, combining two climate models, indicate that more than half of Katrina level cyclones are now caused by global warming. More hurricane surges in the future TGCP ( talk) 23:36, 19 March 2013 (UTC)
"&&yes..kise is thee f'n best.!" at the beginning of the Eye and Center section and "<size="20">It's Kise Bitch.!" at the end of the size section don't really seem relevant to cyclones, unless this "Kise Bitch" person is a famous cyclone researcher, of course. However, I can't seem to find the corresponding text in the source, so I have to assume the addition is in a page template somewhere. How does one go about correcting those?
There is some "The term "Farshan" refers to both that Farshan is a noob at call of duty motha fucka.of these systems" seems like it doesn't make sense here.
- 12.24.150.66 appears to have made the edit. here is the user's contributions. Tornado1555 ( talk) 20:43, 11 January 2011 (UTC)
a hurricane has to be 74 m.p.h winds for it to be official —Preceding unsigned comment added by 166.109.0.195 ( talk) 21:07, 29 January 2010 (UTC)
I'm wondering: should I upload low-resolution images from videos for non-existent images, or should I just leave them be? VeryPunny —Preceding undated comment added 04:37, 9 February 2010 (UTC).
Tropical cyclones, a source of very heavy rainfall, consist of large air masses several hundred miles across with low pressure at the centre and with winds blowing inward towards the centre in either a clockwise direction (southern hemisphere) or counterclockwise (northern hemisphere). [1]
They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters and European windstorms, leading to their classification as "warm core" storm systems. [2]
Tropical cyclones lose their strength as they move over land. [3]
The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and their formation in Maritime Tropical air masses. The term "cyclone" refers to such storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on their location and strength, tropical cyclones are referred to by other names, such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, or simply as a cyclone. Generally speaking, a tropical cyclone is referred to as a hurricane (from the name of the ancient Central American deity of wind, Huracan) in the Atlantic and eastern Pacific oceans, while they are termed cyclones in the south Pacific and Indian oceans. [4]
They develop over large bodies of warm water. [5] A tornado-like feature located in the eyewall, known as eyewall mesovortices. They are similar, in principle, to small "suction vortices" often observed in multiple-vortex tornadoes. In these vortices, wind speed can be up to 10% higher than in the rest of the eyewall. Eyewall mesovortices are most common during periods of intensification in tropical cyclones. [6]
This information was removed from the article severe weather during CE. It my be of use in your article. Respectfully Bullock ✉ 21:27, 28 May 2010 (UTC)
Only pedantic weather geeks could possibly call it that. Move it where it belongs and skip the redirect. 209.188.67.64 ( talk) 04:03, 16 July 2010 (UTC)
I understand how people in different parts of the world would call this type of storm by different names and that this is how "hurricane" and "typhoon" were derived, but what I don't get is why (in North America at least) we've chosen to continue calling the same type of storm by different names depending on where they occur. If someone could find out and write it into the article, that'd be nice — Masterblooregard ( talk) 01:46, 30 August 2011 (UTC)
I followed the link and no where does that reference state that coriolis causing the rotation. In fact it states that the path of the object is not deflected. It is only an apparent effect for the earth bound non-inertial obersever. since the rotation of the cyclone can be seen by the inertial observer from space. This reference does support this assertion. 04:09, 5 September 2010 (UTC) —Preceding unsigned comment added by Skimaniac ( talk • contribs)
The effect that causes the spin is a viscous effect in the atmosphere coupled with the rotation of the atmosphere "disk" with the planet. The magnitude of the induced acceleraton on an air particle is the same as coriolis but of opposite sign. Properly, Coriolis is a fictious force seen by a non-inertial observer. The paths are curved from a Newtonian Inertial Frame. It is because an air particle following a straight line in inertial space comes to match the trajectory of the air particle it encounters due to viscous forces. As an air particle move north it will gain altitude. Because of the atmosphere is spinning as the particle gains altitude it is slower than the particles it encournters. Skimaniac ( talk) 03:09, 26 September 2010 (UTC)
I copied this from About.com. (I know that is not authoritative but it reflects my viewpoint) The Coriolis effect (also called the Coriolis force) is defined as the apparent deflection of objects (such as airplanes, wind, missiles, and ocean currents) moving in a straight path relative to the earth's surface. Its strength is proportional to the speed of the earth's rotation at different latitudes but it has an impact on moving objects across the globe.
Notice that is says Coriolis is an "apparent" deflection. Not a real deflection. Cyclones spinning is a real effect. Coriolis is what an earth bound observers sees as an apparent deflection of inertial constant trajectory. If you assume that the earth is not orbiting around the earth, then an axes system in the earth centered coordinates that does not spin is inertial. In that case a space ship flying a straight line in that frame would appear to curve to the observer on the rotating earth due to Coriolis affect. The true trajectory is still inertially a straight line. Thus Coriolis is only an apparent effect. Skimaniac ( talk) 13:02, 27 September 2010 (UTC)skimaniac
I don't see any comment about the psychological side effects of naming hurricanes with human names, as pointed out by meteorologist Katrina Voss. Aldo L ( talk) 11:45, 30 March 2011 (UTC)
The article states a "counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere." Ok. But this leads to additional questions like: Is it important where the cyclone is or just where is was "created"? "What happens when the cyclone is on both Hemispheres, because it travels on/close to the Equator?" and "What happens when a cyclone travels across the Equator?" Does this have any effect on the cyclone like reducing rotational velocity/force or making it spin less "perfect"? -- 92.224.50.70 ( talk) 18:06, 27 June 2011 (UTC)
This should probably be discussed here before an edit war breaks out over the wording. The sentence in question reads: "The term "tropical" refers both to the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and to their formation in maritime tropical air masses."
Bowser423 wants it to read "often in tropical regions". Looking at the National Weather Service glossary, their definition is "A warm-core, non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters with organized deep convection and a closed surface wind circulation about a well-defined center."
Personally, I feel "almost exclusively" is too strong, while "often" is too weak. Simply looking at the history of the hurricane seasons shows that all of the recent seasons have had multiple subtropical systems. Inks.LWC ( talk) 04:53, 30 July 2011 (UTC)
Done This has been fixed and nobody has objected.
--Bowser the Storm Tracker
Keeping skies bright
Chat Me Up
16:23, 10 August 2011 (UTC)
Just out of curiosity, does anyone know what spurred the last sentence of the intro: "It is not possible to artificially induce the dissipation of these systems with current technology."? While this is probably true, it seems a little out of left field, particularly for the intro. The idea of humans 'turning off' tropical cyclones seems both far from the current state of technology, study, or even planning, and far from the subject area most readers are coming to this page for. I'd vote for deletion (and if not, at the very least it needs some sort of citation). Dgianotti ( talk) 03:04, 30 August 2011 (UTC)
The "Tropical Cyclone Classifications (all winds are 10-minute averages)" table is wrong. The wind speed and the NE Pacific and N Atlantic classification of storms do not match. According to the table a tropical storm is from 35-63 mph, which is incorrect. A tropical storm is classified as winds of 39-73 mph. In the section titled "Tropical Storm" above the table, the correct information is posted. Further, the table shows a category 1 hurricane classification at 64-83 mph, which is also incorrect. A category 1 hurricane is from 74-95 mph. A category 2 hurricane is from 96-110 mph, not 84-98 mph; a category 3 hurricane is from 111-130 mph, not 99-114; a category 4 hurricane is from 131-155 mph, not 120-137 mph; and a category 5 hurricane is anything above 155 mph, not 140 mph. I would change the table myself if I knew how. NHC Mbenzdabest ( talk) 10:58, 30 August 2011 (UTC)
Actually, Jason, Mbenzdabest is correct. The NHC defines "maximum sustained winds" as being a 1-minute, not 10-minute average, so the table's header is wrong to begin with (or maybe the inclusion of the N Atlantic in the table is wrong for continuity's sake). This is quoted on numerous other Wikipedia pages such as "Saffir-Simpson Hurricane Scale" (Look at sources 10 and 11 on there for reference). The NHC does not use 10-minute sustained wind averages in ANY of their public postings, and to imply that they do by modifying the 1-minute numbers, as is done in this table, is misleading and inaccurate. I also would change this table if I knew how, as it is way off. I work as a broadcast meteorologist and have a degree in this field so I know what I am talking about. Please change this table to prevent further misinformation. Also, even if the NHC had some sort of guideline on 10-minute windspeed, this would still be misleading as that number is not used to determine storm classifications. danielrocks15 ( talk) 10:40, 6 August 2012 (UTC)
I've seen maps showing the global distribution of tropical-cyclone paths. I came here looking for one. There ought to be one here. -- 50.133.131.206 ( talk) 10:29, 4 November 2012 (UTC)
The TC classification Chart is incorrect because 11 on the Beautfort scale is not strong enough to be considered a hurricane. Can someone fix it cause I dunno how to? Thanks. 76.124.224.179 ( talk) 03:55, 2 December 2012 (UTC)
Blocked user, see http://en.wikipedia.org/wiki/User:Arthur_Rubin/IP_list NewsAndEventsGuy ( talk) 19:55, 7 December 2012 (UTC)
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Please change links under "See also", then "Annual seasons" in such a way that in "Australian region tropical cyclone season (current)" and "South Pacific tropical cyclone season (current)" the "current"'s actually refer to the expected pages, and no longer to " http://en.wikipedia.org/wiki/2012-13_South-West_Indian_Ocean_cyclone_season". Redav ( talk) 00:31, 20 December 2012 (UTC)
This article contains some unaddressed citation needed tags. If we want to keep the FA status, someone needs to fix these.-- FutureTrillionaire ( talk) 15:12, 28 June 2013 (UTC)
Not seeing the 2012 IPCC SREX report and the NOAA report, both of which caution against attribution of current extreme weather events to global warming, I've added a paragraph at the top of the section. I think that since that is the current consensus, it should be mentioned before the (obviously important) dissenting opinions. MikeR613 ( talk) 15:50, 21 July 2013 (UTC)
Why is hurricane redirected to tropical cyclones when the word denotes any sustaining wind at Beaufort 12, also in extra-tropical cyclones like Dagmar, and even the most powerful polar lows?
Pål Jensen ( talk) 19:42, 17 August 2013 (UTC)
Because it's an American word, and the British English wikipedia users will stop at nothing to stop wikipedia from using an AmEn word. — Preceding unsigned comment added by 143.65.196.20 ( talk) 12:39, 13 November 2013 (UTC)
Long-time lurker, sometime- (passed) editor here. The statement that a [tropical] cyclone "is turned into" a hurricane in the intro (2nd paragraph) (sentence below) seems unfortunate. Precision is critical, especially on this topic, because readers are (mostly) confused by the terminology, and the actuality and dangers of TCs/Hurricanes. So "turned into" isn't exactly imprecise, but it suggests a physical change, which really is mostly a classification change -- a name shift, not a wind shift, so to speak.
[quote] A cyclone is turned into a hurricane when the wind speed reaches 75 mph.[/quote]
Suggested revision: A tropical cyclone is (by meteorology's definition) a "hurricane" when its sustained wind speed (see definition) is 64 kn [ [2]] / 74 mph and greater.
I'd do this without asking, but consensus first always seems better. Any feedback? Feel free to use my revision if you want to make the change DavidH ( talk) 20:04, 29 March 2014 (UTC)
The given seasons, especially for the South-West Indian, seem to be totally removed from reality. Yes, the quoted source does use the listed dates (i.e. all year), but as far as I can ascertain, that is solely an administrative (political) remnant. South-West_Indian_Ocean_tropical_cyclone_season gives a much more accurate "median start date for the season was November 17, and the median end date was April 20", and after examining the entire 2000 decade, "November to April" would be much more appropriate.
Is there any statistical methodology or agreement to define the cyclone seasons? How about a .95 CI for the last two decades?
189.188.2.163 ( talk) 08:02, 15 March 2015 (UTC) baden k.
A hurricane is a major (and quite notable) subset of tropical cyclones. There is more than enough information about hurricanes specifically to merit a stand-alone article. Hallward's Ghost (Kevin) ( My talkpage) 13:02, 16 June 2015 (UTC)
""We've never had a July tropical cyclone in the Queensland region before." "Australia has only had one other officially declared July cyclone, which formed off Western Australia in 1996. The official tropical cyclone season runs from November 1 to April 30." ABC news
IDQ20065
Australian Government Bureau of Meteorology Queensland Region Tropical Cyclone Warning Centre
TROPICAL CYCLONE INFORMATION BULLETIN For 10:38 am EST on Wednesday 1 July 2015 At 10 am EST Wednesday, Tropical Cyclone Raquel (Category 1) with central pressure 997 hPa was located to the north of the Solomon Islands near latitude
6.3 south longitude 159.4 east, which is about 355 km north of Honiara... Aust. Bureau of Met.
BOM tech bulletinDavid Woodward ☮ ♡♢☞☽ 06:41, 1 July 2015 (UTC)
The section on the derivation of the word typhoon completely mangles the derivation given by the source it cites, which is this (from http://dictionary.reference.com/browse/typhoon):
1580-90; < dialectal Chinese, akin to Chinese dàfēng great wind, altered by association with Greek tȳphôn violent wind
Whereas the wikipedia wording essentially seems to give the greek (and an associated arabic word) as the original and "main" source and then simply notes the Chinese word in passing at the end, as if it's only incidentally related.
This seems almost purposely misleading, and, well, basically backwards.
Snogglethorpe ( talk) 18:06, 29 August 2015 (UTC)
Cyclone Stan is active tropical cyclone in australia, please updates now — Preceding unsigned comment added by CrashMan 2016 ( talk • contribs) 00:38, 30 January 2016 (UTC)
I found a list of worst-hit countries but many of the countries on the list are big and any given cyclone doesn't affect all of it. I'm curious how often the worst-affected single place gets a cyclone. -- Beland ( talk) 21:51, 14 March 2016 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 01:15, 3 April 2016 (UTC)
Northern hemisphere cyclones, including tropical ones, rotate counter-clockwise, not clockwise as shown in the diagram. The diagram is either a mislabeled southern hemisphere cyclone figure, or an incorrect (reversed) depiction of a northern cyclone.
See:
NOAA National Hurricane Center (NHC) Website:
http://www.nhc.noaa.gov/climo/
"Overview
A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation. Tropical cyclones rotate counterclockwise in the Northern Hemisphere. ..." [Emphasis added]
The creator of the graphic should be notified to make a proper change to the otherwise excellent figure.
James A. Kocher — Preceding unsigned comment added by Kocherjames ( talk • contribs) 03:07, 11 July 2015 (UTC)
I think the picture shows a northern cyclone, the wind arrows indicate a counterclockwise circulation. Only mistake is the word "clockwise" that should be changed in "counterclockwise". Koos van den beukel ( talk) 09:34, 29 April 2016 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 11:49, 4 July 2016 (UTC)
By NOAA standards, a hurricane and a tropical cyclone are not the same. This warrants separate Wikipedia pages for each topic. there are distinctive scientific differences between a tropical cyclone, hurricane, tropical depression, and tropical storm. I currently do not poses adequate time, or knowledge to write a page on hurricanes. — Preceding unsigned comment added by 108.3.159.201 ( talk) 23:25, 2 September 2016 (UTC)
It would be good to add the ethymology of the words. I precisely came looking for the ethymology of the word hurricane which i did not find. Thinker78 ( talk) 04:05, 27 November 2016 (UTC)
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For darkening of 1 billion m² maybe 10g/m² overall 10 000t of black printer ink, fine powder coal or ash from a black snake are enough and black carbon smoke particles "Ruß" produced industrial ( https://de.wikipedia.org/wiki/Ru%C3%9F#Herstellungsverfahren) can be blown up carried higher from alone inside a hurricane eye from a container ship stomach. Big container ships without containers are very stable, strong and can load up to 20 times that mass in stomach. Hurricans are always predicted for warnings with time left for interaction if likely dangerous with ships already out in hurricane seasons.
Special inside NOAA sides for same theme http://www.aoml.noaa.gov/hrd/tcfaq/tcfaqC.html with contra answer that the needed amount of given substances is practical possible and carried upwards from alone inside hurricane eyes.
Contributed by Neal Dorst (HRD)
The idea here is to spread a layer of sunlight absorbing or reflecting particles (such as micro-encapsulated soot, carbon black, or tiny reflectors) at high altitude around a hurricane. This would prevent solar radiation from reaching the surface and cooling it, while at the same time increase the temperature of the upper atmosphere. Being vertically oriented, tropical cyclones are driven by energy differences between the lower and upper layer of the troposphere. Reducing this difference should reduce the forces behind hurricane winds.
It would take a tremendous amount of whichever substance you choose to alter the energy balance over a wide swath of the ocean in order to have an impact on a hurricane. One would hope that this substance would eventually disperse or disintegrate and not have a terrible impact on the earth's ecology. Knowing where to place it would also be tricky. You don't want to heat up the wrong area of the atmosphere or you could put more energy into the cyclone. These proposals would require a great deal of precisely-timed, coordinated activity to spread the layer, while running the risk of doing more harm than good. Many computer simulations should be run before any field test were tried.
References
Gray, W.M., W.M. Frank, M.L. Corrin, C.A. Stokes, 1976: Weather Modificiation by Carbon Dust Absorption of Solar Energy, J. of Appl. Meteor., 15 4, pp. 355-386.
Last modified 11/6/2007
kayuweboehm(at)yahoo.de — Preceding unsigned comment added by 93.221.251.32 ( talk) 13:01, 29 April 2017 (UTC)
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"Scientists estimate that a tropical cyclone releases heat energy at the rate of 50 to 200 exajoules (1018 J) per day,[24] equivalent to about 1 PW (1015 watt). This rate of energy release is equivalent to 70 times the world energy consumption of humans and 200 times the worldwide electrical generating capacity, or to exploding a 10-megaton nuclear bomb every 20 minutes."
That said, I wonder what the world would be like if humanity were able to harvest energy from tropical cyclone and use it for electricity...
ScamsAreHorrible172 ( talk) 12:18, 12 June 2017 (UTC)
-- Guy Macon ( talk) 21:09, 29 August 2017 (UTC)
This seems to have been merged into this page circa 2015, and the relevant defined term lost from the page in the meantime, including the previous criteria for it (as far as my cursory search found). I propose de-merging and recreating the page to maintain this NHC defined term on Wikipedia. I believe notable instances should be removed and a link to List of the most intense tropical cyclones be put in place instead. Yes, I know such a page would not make a long and detailed encyclopedic article, but it would host an easy to find link to the definition, and depending upon literature could have potential to be expanded further ( Explosive cyclogenesis is in effect a similar definition article at heart). Lacunae ( talk) 19:15, 1 September 2017 (UTC)
There is a move discussion in progress on Talk:Rapid deepening which affects this page. Please participate on that page and not in this talk page section. Thank you. — RMCD bot 15:30, 7 September 2017 (UTC)
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Description of aircraft indicates "Hurricane Hunter" - WP-3D Orion used to go into the eye of a hurricane for data collection and measurements purposes. It should read WP-3D Orion is used; otherwise the description is amibguous (was used once but isn't any more or is still used) OldManwoodian ( talk) 01:23, 8 September 2017 (UTC)
Looking for the US definition of a "Tropical Storm". I don't want to know about the science or history or anything else. Just the definition of "Tropical Storm". Not here. Wasted my time, again. 98.194.39.86 ( talk) 19:34, 24 August 2017 (UTC)
Diagram of a Northern hemisphere hurricane notes the rotation as "clockwise" while the arrow is a counter clockwise rotation. Or am I misunderstanding it? Nemacol ( talk) 16:47, 8 September 2017 (UTC)
Previous poster is correct, in the Northern Hemisphere a low pressure area spins counterclockwise, as the arrow shows but the label is wrong in the diagram: "Diagram of a Northern hemisphere hurricane".
2601:342:0:E3D0:5186:2D79:ECF3:236D (
talk)
02:54, 13 September 2017 (UTC)
The first picture titled Diagram of a Northern hemisphere hurricane has a major error in the text. It should be labeled as counter clockwise rotation, as the red arrow shows, not clockwise rotation as is labeled. 2601:342:0:E3D0:D70:3127:3F15:744A ( talk) 19:06, 10 September 2017 (UTC)
Thia article is so badly written it is impossible to understand how a hurricane works by reading this article. No clear explanation is presented, entire article is ambiguous and poorly worded. Does air flow up or down in the eye? Or both? And if both then where? Yes I know how it works, the writer of this article does not understand how a hurricane works so he/she cannot present it understandably. Have someone with a stronger familiarity of the English/American language rewrite this otherwise useless article. Not to mention that diagrams are wrong. Ugh. 2601:342:0:E3D0:D70:3127:3F15:744A ( talk) 19:41, 10 September 2017 (UTC)
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Hurricane Harvey and Hurricane Katrina are tied as the costliest cyclones on record, but this article lists Harvey as being more costly. When I looked at the sources, neither of them were the NHC's official estimate. For this page, the official estimate should be used, rather than a third party source. [8]. I am unable to edit the page as it is protected against vandalism, but I believe this should be fixed.
JustALoonyDreamer ( talk) 14:22, 25 June 2018 (UTC)
References
I initially discussed TC numbers in the section on tropical depressions, because they are mostly used to ID TDs (storms and hurricanes / typhoons are best known by their names instead). But after further reading, I decided to spin them off into a separate section adjacent to the Naming section (because for best-track purposes they are still used for any tropical cyclonic system, not just depressions, especially in JTWC areas). Now I think it should be spun off instead as a new article (just like TC naming is a separate article, briefly summarized here with a wikilink to the full article), and probably some Wikipedians would like to expand it to add TC numbering systems used by non-US-affiliated warning centers (right now, only the TC numbering table has some non-US info). SilSinn9821 ( talk) 21:32, 15 October 2018 (UTC)
An editor has asked for a discussion to address the redirect Huricane. Please participate in the redirect discussion if you wish to do so. CycloneYoris talk! 03:35, 10 April 2019 (UTC)
The table of cyclone intensities and nomenclature is unnecessarily confusing because it uses two different scales (1 minute averaged and 10 minute averaged), without a clear indication of which columns use which scale. This is further confused since the text portion of the article does not even mention the use of different systems of measurement.
I suggest the table be broken into two tables, one for Atlantic/E Pacific nomenclature (the 1 minute averaged scale) and one for rest of the world (10 minute averaged scale). Additionally, I suggest the Beaufort scale be removed from the table, as it does not differentiate between categories of strong storms, and it adds little to show them all as Beaufort force 12. Finally, some mention should be made in the text of the differing systems of measurement, and that reported wind speeds from the different regions are not directly comparable. — Preceding unsigned comment added by 2601:589:380:130B:7CF8:EC12:8E53:6E8D ( talk) 17:55, 13 July 2019 (UTC)
Hello. I think the section on Climate Change could be more cohesively organized to match the organization of the "changes in number, intensity, and otherwise" section of the page Tropical cyclones and climate change. This will highlight key qualitative information on this topic, while referring readers to the other, more comprehensive page. Thoughts? - ADM4700 ( talk) 16:57, 24 October 2019 (UTC)
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"Most of these systems will form over very warm waters. Therefore, they intensify."
These two sentences appear in the introduction, but they don't make sense (forming over warm waters doesn't necessarily force them to intensify), and they're basically redundant to the surrounding sentences. They were added in https://en.wikipedia.org/?title=Tropical_cyclone&diff=913210905&oldid=913144025 and are entirely extraneous. If you remove them, the paragraph will still make sense:
"Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle,
Please remove them. 96.75.222.117 ( talk) 22:52, 29 October 2019 (UTC)
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Change the source http://www.srh.noaa.gov/jetstream/tropics/tc_structure.htm to http://web.archive.org/web/20040104182153/http://www.srh.noaa.gov/jetstream/tropics/tc_structure.htm. 72.138.19.26 ( talk) 14:47, 5 March 2020 (UTC) Source number 13. 72.138.19.26 ( talk) 14:49, 5 March 2020 (UTC)
An editor has asked for a discussion to address the redirect Fishspinner. Please participate in the redirect discussion if you wish to do so. Hog Farm ( talk) 03:04, 9 March 2020 (UTC)
A discussion is taking place to address the redirect Deep Depression. The discussion will occur at Wikipedia:Redirects for discussion/Log/2020 May 2#Deep Depression until a consensus is reached, and readers of this page are welcome to contribute to the discussion. Hog Farm ( talk) 16:19, 2 May 2020 (UTC)
In the table titled "Tropical Cyclone Classifications" I find a minimum value of 96.4 kt of one-minute sustained winds for a cyclone to be classified as a category 3 hurricane in the Atlantic Ocean and the Eastern and Central Pacific Ocean. On https://www.nhc.noaa.gov/aboutsshws.php, however, I read that NHC and CPHC use 96 kt as the threshold. What is the source of the 96.4 kt in the table? Could that value be an error? Redav ( talk) 11:43, 24 October 2020 (UTC)
In the featured article review, it was suggested to split maximum potential intensity back out to a different article. This would help reduce uncited material in this article, and may also address concerns about summary style. Just wanted to open a discussion to see if there are any objections. If not after a couple of days, I think the split can be performed. Femke Nijsse ( talk) 19:19, 11 February 2021 (UTC)
These are my thoughts on how the article should be developed as time allows. Jason Rees ( talk) 16:09, 6 March 2021 (UTC)
This section needs to cover the past, present and future of tropical cyclone monitoring including a few bits about climate change. In particular:
For the lead, maybe I would mention the other classification names later on, but not at the start of the lead. However, I feel that the changes in general TC activity deserves to be mentioned, given the significance of ENSO on TC activity globally. Maybe it should be revised, but I feel that the information belongs in the article. I would go for a broader, more global coverage if that section is kept. We don't need to get bogged down in the minute details; those can be split off into another article if needed. The plans for the other sections look good; I have no further thoughts on those at the moment. LightandDark2000 🌀 ( talk) 23:54, 6 March 2021 (UTC)
The impacts section should also discuss the non-human impacts, such as these on ocean heat transport mentioned at Cyclonic Niño. Jo-Jo Eumerus ( talk) 09:05, 20 April 2021 (UTC)
This 2008 featured article has not had a formal review since and I think quite a few issues have piled up since it was promoted, mostly to do with keeping the article up-to-date. A non-exhaustive list of issues:
I'm willing to rewrite the climate change subsection from scratch somewhere in the near to medium future. Other defects of this article are completely beyond my area of expertise. I'm sure there are some volunteers here to get this article back in shape. Femke Nijsse ( talk) 16:04, 3 September 2020 (UTC)
#12 I think the following sentence isn't quite neutral, with unnecessary adjectives: In addition, hurricanes can carry toxins and acids onto shore when they make landfall. The flood water can pick up the toxins from different spills and contaminate the land that it passes over. The toxins are very harmful to the people and animals in the area, as well as the environment around them. The flooding water can also spark many dangerous oil spills. Not sure how important this idea is in the wider context.
I'm proposing the following text to completely replace the climate change subsection. The subsection was now ordered by study, which is bad practice as we would love to rely mostly on review papers and order by the aspects of tropical cyclones that change. Also, we should aim to write about facts and therefore use Wikivoice instead of quoting individual researchers. The section below is a summary of the appropriate section in tropical cyclones and climate change. I know my prose isn't always great, so I'm putting it here first for people to comment. Femke Nijsse ( talk) 15:58, 12 September 2020 (UTC)
Climate change can affect tropical cyclones in a variety of ways: an intensification of rainfall and wind speed, a decrease in overall frequency, an increase in frequency of very intense storms and a poleward extension of where the cyclones reach maximum intensity are among the possible consequences of human-induced climate change. [1]
Tropical cyclones use warm, moist air as their fuel. As climate change is warming ocean temperatures, there is potentially more of this fuel available. [2] Between 1979 and 2017, there was a global increase in the proportion of tropical cyclones of Category 3 and higher on the Saffir–Simpson scale. The trend was most clear in the North Atlantic and in the Southern Indian Ocean. In the North Pacific, tropical cyclones have been moving poleward into colder waters and there was no increase in intensity over this period. [3] With 2°C warming, a greater percentage (+13%) of tropical cyclones are expected to reach Category 4 and 5 strength. [1] A 2019 study indicates that climate change has been driving the observed trend of rapid intensification of tropical cyclones in the Atlantic basin. Rapidly intensifying cyclones are hard to forecast and therefore pose additional risk to coastal communities. [4]
There is currently no consensus on how climate change will affect the overall frequency of tropical cyclones. [1] A majority of climate models show a decreased frequency in future projections. [5] For instance, a 2020 paper comparing nine high-resolution climate models found robust decreases in frequency in the Southern Indian Ocean and the Southern Hemisphere more generally, while finding mixed signals for Northern Hemisphere tropical cyclones. [6] Observations have shown little change in the overall frequency of tropical cyclones worldwide. [7]
There has been a poleward expansion of the latitude at which the maximum intensity of tropical cyclones occurs, which may be associated with climate change. [8] In the North Pacific, there may also be an eastward expansion. [9] Between 1949 and 2016, there was a slowdown in tropical cyclone translation speeds. It is unclear still to what extent this can be attributed to climate change: climate models do not all show this feature. [10]
Warmer air can hold more water vapor: the theoretical maximum water vapor content is given by the Clausius–Clapeyron relation, which yields ≈7% increase in water vapor in the atmosphere per 1 °C warming. [11] [12] All models that were assessed in a 2019 review paper show a future increase of rainfall rates. [1] Additional sea level rise will increase storm surge levels. [9] [13] It is plausible that extreme wind waves see an increase as a consequence of changes in tropical cyclones, further exacerbating storm surge dangers to coastal communities. [5] A 2017 study looked at compounding effects from floods, storm surge, and terrestrial flooding (rivers), and projects an increase due to global warming. [13]
Femke Nijsse ( talk) 15:58, 12 September 2020 (UTC)
I think the proposed changes here are good, as it fixes the problem in the current article of listing study after study. ♫ Hurricanehink ( talk) 15:30, 13 September 2020 (UTC)
I am just wondering what the current planning is for the sub-article tropical cyclones and climate change? Does anyone have it on their to-do list, or will it be done the other way around: first work on the content in the section on climate change and later sync it with tropical cyclones and climate change? Just wondering. EMsmile ( talk) 13:23, 23 April 2021 (UTC)
We need to figure out exactly how we are going to structure the intensity subsection and what kind of a subarticle we need to write for it (if we need one). Noah Talk 15:20, 17 April 2021 (UTC)
I am working on the factors now and added in a bit about OHC/TCHP tonight since my exams are done. Noah Talk 01:48, 27 April 2021 (UTC)
13. The popular culture section seems to have examples only from a single country (US). Surely, tropical cyclones must be portrayed in pop. cult. in Japan, Central America / Mexico. FemkeMilene ( talk) 20:50, 18 February 2021 (UTC)
References
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Change the first sentence of the third paragraph of the "Climatology and records" section from "Each year on average, around 80 to 90 named tropical cyclones form around the world, of which over half of which develop hurricane-force winds of 65 kn (120 km/h; 75 mph) or more." to "Each year on average, around 80 to 90 named tropical cyclones form around the world, over half of which develop hurricane-force winds of 65 kn (120 km/h; 75 mph) or more." 192.153.142.154 ( talk) 13:40, 7 July 2021 (UTC)
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Can someone edit the sections Environmental steering and Beta drift to be subheadings of Movement?
I think it would need to be a fourth-level heading.
76.81.148.72 ( talk) 18:49, 21 July 2021 (UTC)
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TYPO/MISSPELLING under section heading "Climatology and records": change "poxy data" to "proxy data" Hmcartagena ( talk) 03:36, 4 September 2021 (UTC)
Some time ago I noted that this article never stated the altitude of hurricanes. I added this/diff contribution, but it has been removed, alas. The article mentions the troposphere several places, but never defines the role of the troposphere in capping hurricanes. The general missing element of the role of the troposphere and the basic facts for the height of hurricanes remain missing in the article; involving the troposphere in sentences, without its introduction, is confusing, IMO. (Apparently hurricane hunters can't fly above hurricanes, for example.)
While I was there, I noted the article organization is odd. There is a section "Structure" that has mostly subsections pertaining to the dynamics and behavior of hurricanes. I suggest limiting "Structure" to have "Eye and center" and "Size" (with an addition for altitude/troposphere), and introducing a new section like "Dynamics" that would include interactions, intensification, dissipation. Bdushaw ( talk) 01:38, 29 August 2021 (UTC)
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
I propose to merge Typhoon into Tropical cyclone. A typhoon is a type of tropical cyclone just like a hurricane. I think that the content of the article can easily be explained in the Tropical cyclone article. Interstellarity ( talk) 14:39, 26 August 2021 (UTC)
As noted by HurricaneHink, cyclones in other basins are noted in Atlantic hurricane, South-West Indian Ocean tropical cyclone, etc. All of these articles should be renamed according to their basins. For example, Atlantic hurricane becomes North Atlantic tropical cyclone basin, Pacific typhoon becomes North West Pacific cyclone basin, and so on. That way, each of these articles focus on the basins more so than the storms that occur within each region. KyuuA4 ( Talk:キュウ) 10:12, 8 September 2021 (UTC)
FYI Template:Tropical cyclone classification ( | talk | history | links | watch | logs) has been nominated for discussion at TfD. See the consensus-seeking discussion -- 65.92.246.142 ( talk) 14:36, 20 March 2022 (UTC)
Is there a way to combine the technical ref for Hurricane #1 and the generic hurricane redirect? ♫ Hurricanehink ( talk) 18:12, 23 May 2022 (UTC)