Talk:Tropical cyclone

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Featured article Tropical cyclone is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
Main Page trophy This article appeared on Wikipedia's Main Page as Today's featured article on June 1, 2009.
          This article is of interest to the following WikiProjects:
WikiProject Tropical cyclones / Meteorology / Eastern Pacific / Atlantic  (Rated FA-class, Top-importance)
WikiProject icon This article is within the scope of WikiProject Tropical cyclones, which collaborates on tropical cyclones and related subjects on Wikipedia. To participate, help improve this article or visit the project page for details.
Featured article FA  This article has been rated as FA-Class on the project's quality scale.
 Top  This article has been rated as Top-importance on the project's importance scale.
Taskforce icon
This article is supported by the tropical meteorology articles task force (marked as Top-importance).
Taskforce icon
This article is supported by the Pacific hurricane articles task force (marked as Top-importance).
Taskforce icon
This article is supported by the Atlantic hurricane articles task force (marked as Top-importance).
Note icon
This article has been assessed by editors of the WikiProject.

This article has comments here.

Wikipedia Version 1.0 Editorial Team / v0.5 / Vital (Rated FA-class)
WikiProject icon This article has been reviewed by the Version 1.0 Editorial Team.
Featured article FA  This article has been rated as FA-Class on the quality scale.
 ???  This article has not yet received a rating on the importance scale.

This article has comments here.

WikiProject Physics / Fluid Dynamics  (Rated FA-class, Mid-importance)
WikiProject icon This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Featured article FA  This article has been rated as FA-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
This article is supported by Fluid Dynamics Taskforce.

This article has comments here.

This article has an assessment summary page.

Intro - question phrasing of TC turning into hurricane[edit]

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 [[1]] / 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)

Hang on a second, i would oppose a sentence that says something like what you are proposing, since the 65 kt marker is a significant one around the world and would thus need to reflect the other terms used at 65 kts including Severe Tropical Cyclone, Tropical Cyclone and Typhoon.Jason Rees (talk) 20:55, 29 March 2014 (UTC)
Not proposing a radical change. I just want the sentence to say that it's a [whatever] only by definition, not some physical law. It didn't mention those other terms before, but I could see adding them. (talk) 00:17, 30 March 2014 (UTC)
I think we should get rid of that sentence and then expand the sentence of "Depending on its location and [wind] strength, a tropical cyclone is referred to by names such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, and simply cyclone" and maybe carry a link to tropical cyclone scales which covers it in full.Jason Rees (talk) 15:51, 30 March 2014 (UTC)

Seasons (South-West Indian)[edit]

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? (talk) 08:02, 15 March 2015 (UTC) baden k.

We on Wiki can not define what the season is per the rules on Original Research. We have to rely on what is official for the whole basin and in this case it is defined as the whole year per the WMO.Jason Rees (talk) 09:54, 15 March 2015 (UTC)

Hurricane should not redirect here[edit]

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)

Feel free to write such an article. If it is good enough to stand alone, we can split it off. Inks.LWC (talk) 18:24, 16 June 2015 (UTC)
I beg to differ, they are not a subset of tropical cyclones at all. "Hurricane" is merely a regional name given to tropical cyclones in the North Atlantic and East Pacific, much the same as "typhoon" is used in East Asia. Cyclonebiskit (talk) 18:35, 16 June 2015 (UTC)
I also beg to differ for CB's reasons I also note that we have Atlantic hurricane, Pacific hurricane and Typhoon talking about the subsets that you mean @Hallward's Ghost:.Jason Rees (talk) 18:50, 16 June 2015 (UTC)
In my view, both the AH and PH articles should be part of a larger Hurricane article. And how, exactly, is "typhoon" not simply a "regional name given to tropical cyclones" if that's all a "hurricane" is? (In fact, that's not at all what a "hurricane" is. A "hurricane" refers to tropical cyclones that have attained certain sustained wind speeds.) Hallward's Ghost (Kevin) (My talkpage) 18:57, 16 June 2015 (UTC)
"Hurricane" is both widely used to refer to TCs within the aforementioned regions and storms that have achieved sustained winds of at least 74 mph. If you're speaking of the hurricane classification within the Saffir-Simpson scale, the scale itself has an article: Saffir–Simpson hurricane wind scale. The climatological aspects of these storms already have their own articles: Atlantic hurricane and Pacific hurricane. Cyclonebiskit (talk) 19:07, 16 June 2015 (UTC)
How exactly would such an article differ materially from what's said about hurricanes in this article? Since a hurricane in the northeast pacific is called a typhoon, and one in the southern Atlantic, southern Pacific, or Indian Ocean is simply called a tropical cyclone, I think such an article would simply overlap the present one; the only difference would be its geographical scope, which is really just a matter of terminology. I don't think that justifies a separate article. P Aculeius (talk) 20:35, 16 June 2015 (UTC)
I don't think it justifies a separate article either, but if Hallward's Ghost wants to try to take a crack at writing such an article, that's fine with me. Inks.LWC (talk) 23:34, 16 June 2015 (UTC)
  • Then why, exactly, does the typhoon article exist, since as you say, it's just what a "hurricane" is called when it happens in the northeast Pacific? What's the difference, other than the fact that "hurricane" is an AmEng word, as someone noted in one of the above sections? Hallward's Ghost (Kevin) (My talkpage) 04:18, 17 June 2015 (UTC)
I misunderstood your initial intent on this thread, to be honest, so I apologize for being confrontational at first. The article you're looking to have created already exists in the form of Atlantic hurricane and Pacific hurricane, it's merely separated into the two basins because of climatological differences between them. "Typhoon" is titled the way it is because there's no need to specify a region since the term is only used in one area. Cyclonebiskit (talk) 06:53, 17 June 2015 (UTC)

1st July tropical cyclone in the Queensland region[edit]

""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


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)

We are tracking it down on 2014-15 and 2015-16 Australian region/South Pacific tropical cyclone seasons. Any help is appreciated. :)Jason Rees (talk) 15:12, 1 July 2015 (UTC)

Error In Cutaway Figure Showing Northern Hemisphere Hurricane Structure[edit]

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.


NOAA National Hurricane Center (NHC) Website:


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 (talkcontribs) 03:07, 11 July 2015 (UTC)

Derivation of the word "typhoon"[edit]

The section on the derivation of the word typhoon completely mangles the derivation given by the source it cites, which is this (from

   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)

To be honest im not seeing the need for the word Typhoon to be defined in this article, but putting that to one side i think there has been a few people challenging or tweaking the word so it doesnt surprise me if it is "purposely misleading and basically backwards".Jason Rees (talk) 08:21, 30 August 2015 (UTC)
Hmmm, ok... I looked around a bit more, and it's quite confusing, some dictionaries cite one source (arabic/greek) as the primary, some cite the chinese as primary, others just say they arose independently and later merge. I've seen a comment by someone claiming it came via Japanese (which clearly uses the Chinese-derived word, but who's pronunciation is almost identical to the english "typhoon"). Because some dictionaries do give essentially the derivation give here, I expect it was anything malicious, the original author probably just didn't look beyond the first source they found.
You're right, though, wiktionary already seems to have already had this discussion, so maybe the discusion here should just removed and a reference made to wiktionary. It would be nice to have an explicit link to wiktionary though, as I think it is a somewhat interesting word; is there a standard way to do this? [I note the wiktionary entry has a "wikipedia has an article" box....]
Thanks, Snogglethorpe (talk) 07:10, 14 September 2015 (UTC)