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Tropical Cyclones Portal

Typhoon tip peak.jpg

A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rainfall. Tropical cyclones feed on the heat released when moist air rises, resulting in condensation of water vapor contained in the moist air. They are fuelled by a different heat mechanism than other cyclonic windstorms such as nor'easters, European windstorms, and polar lows, leading to their classification as 'warm core' storm systems. Tropical cyclones originate in the doldrums near the Equator, approximately 10 degrees away.

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 anticlockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on its location and intensity, a tropical cyclone can be referred to by names such as 'hurricane', 'typhoon', 'tropical storm', 'cyclonic storm', 'tropical depression', or simply 'cyclone'.

Pictured: Typhoon Tip

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Hurricane Andrew.jpg

Hurricane Andrew was one of the most destructive hurricanes ever to hit the United States. It raged from August 16 to August 28 during the 1992 Atlantic hurricane season, impacting the northwestern Bahamas, southern Florida in the greater Miami area, and south-central Louisiana. Andrew caused $45 billion (2005 US dollars) in damages (mostly in south Florida) and is the second most expensive hurricane in history (behind Katrina of the 2005 season).

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Typhoon Yuri eye.jpg

This photograph shows the bowl-shaped eye of Typhoon Yuri in the western Pacific Ocean just west of the Northern Mariana Islands. The eye wall descends almost to the sea surface, a distance of nearly 45,000 feet (13 800 meters). In this case the eye is filled with clouds, but in many cases the sea surface can be seen through the eye. Yuri grew to super typhoon status, packing maximum sustained winds estimated at 165 miles per hour (270 km/h). The storm moved west toward the Philippines before turning northeast into the north Pacific Ocean, thus avoiding any major landmass.


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WikiProject Tropical cyclones is the central point of coordination for Wikipedia's coverage of tropical cyclones. Feel free to help!

WikiProject Meteorology is the main center point of coordination for Wikipedia's coverage of meteorology in general.




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Currently active tropical cyclones


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Hurricane Ida in the Yucatan Channel November 8 2009.jpg
Tropical Cyclone Agni 05A 2004.jpg

Tropical cyclone anniversaries

Hurricane Joan 22 oct 1988 1317Z.jpg
Typhoon Ruby 23 oct 1988 2236Z.jpg
  • October 24, 1988 - Typhoon Ruby (pictured) made landfall in the Philippines causing over $200 million in damage. Ruby sank a passenger ferry in the Visayan Sea killing 387 of the people on board.
Hurricane Kenna 24 oct 2002 1750Z.jpg
1959 Mexico hurricane track.png

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Portal:Tropical_cyclones — Please support Wikipedia.
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1215 news items

Cato Institute (blog)
Fri, 24 Oct 2014 12:07:30 -0700

Severe hurricanes, or tropical cyclones as they are known by those living outside the United States, are the most intense storms on the planet. Given the amount of damage they can inflict, it's no wonder that they often are the poster children for the ...

Guardian Liberty Voice

The Weather Channel
Wed, 15 Oct 2014 04:44:34 -0700

Recurving Atlantic tropical cyclones, those curling north then northeast into the open north Atlantic Ocean steered by either the western edge of the Bermuda-Azores high and/or a southward dip in the jet stream near or off the U.S. East Coast, are ...
Times of India
Wed, 15 Oct 2014 11:22:27 -0700

"All tropical cyclones are given names only to provide easy communication between forecasters and the general public regarding forecasts, cyclone watches and warnings. Since the storms can often last a week or longer and more than one can be occurring ...


New Zealand Herald
Tue, 14 Oct 2014 23:53:58 -0700

New Zealand and some of its neighbours have been put on alert for a higher than usual chance of tropical cyclones striking this summer. Peak tropical cyclone season is usually from January to March. Forecasting agencies in the South Pacific said for ...
Fiji Times
Sat, 25 Oct 2014 13:37:30 -0700

THERE is a possibility of two tropical cyclones hitting Fiji between the November to April cyclone season with one possibly reaching category three. And there is a high probability that these cyclones will pass close to, or over, the northern and ...
University of Wisconsin-Madison
Fri, 03 Oct 2014 07:49:05 -0700

The AMS cited the CIMSS Tropical Cyclones Group for "providing the weather community with valuable tropical cyclone-related satellite information and derived products for over two decades," stating that the award is "a reflection of [their] commitment ...


Wed, 24 Sep 2014 11:45:00 -0700

"The poleward migration of the tropical cyclones was something we stumbled on..." Kosin said. "We kept seeing a trend that we couldn't explain unless the storms themselves were migrating away from the deep tropics. This did surprise us at first, but ...


Sun, 12 Oct 2014 20:28:51 -0700

The main reason behind the forecast is El Nino-like weather patterns resulting in cooler ocean temperatures, which often lead to fewer tropical cyclones. Still, Dr Watkins said people can't be complacent. In past El Niño years, there has been at least ...

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