Portal:Tropical cyclones
Tropical cyclones portal
A tropical cyclone is a storm system characterized by a large low-pressure center, a closed low-level circulation and a spiral arrangement of 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. Most 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, as well as to 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 may 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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The storm dropped heavy rainfall along its path, peaking at over 40 inches (1000 mm) in Texas. The worst of the flooding occurred in Houston, where nearly $5 billion (2001 USD) in damage occurred. There, 30,000 became homeless after the flooding destroyed 2,744 homes. 23 people died in Texas.
Throughout its entire path, Allison caused $5.5 billion (2001 USD) in damage and 41 deaths. Aside from Texas, the places worst hit were Louisiana and southeastern Pennsylvania. Allison is the only tropical storm to have its name retired without ever reaching hurricane strength.
Recently featured: Hurricane John (1994) – Hurricane Irene (2005) – Tropical cyclone – Cyclone Percy – Browse
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View of the eyewall of Hurricane Katrina taken on Aug. 28, 2005, as seen from an NOAA WP-3D Orion hurricane hunter aircraft before the storm made landfall on the United States Gulf Coast.
Related WikiProjects
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.
WikiProject Non-tropical storms is a similar WikiProject which coordinates most of Wikipedia's coverage on notable extratropical cyclones, and the two projects share numerous overlaps.
Subcategories
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Currently active tropical cyclones
Italicized basins are unofficial.
- North Atlantic (2021)
- No active systems
- West Pacific (2021)
- No active systems
- North Indian Ocean (2021)
- No active systems
- Mediterranean (2020–21)
- No active systems
- South-West Indian Ocean (2020–21)
- No active systems
- Australian region (2020–21)
- No active systems
- South Pacific (2020–21)
- No active systems
- South Atlantic (2020–21)
- No active systems
Last updated: 10:14, 13 June 2021 (UTC)
Did you know…
- …that Cyclone Amphan (pictured) in 2020 was the first storm to be classified as a Super Cyclonic Storm in the Bay of Bengal since 1999?
- …that Hurricane Beryl (pictured) in 2018 caused a spike in calls to a mental health hotline, due to the effects of Hurricane Maria on the island a year prior?
- …that the 1858 San Diego hurricane is the only known tropical system that impacted California with hurricane-force winds?
- …that Hurricane Zeta (pictured) in 2020 dropped several inches of snowfall in Boston, Massachusetts and was one of the few Atlantic tropical cyclones that brought accumulating snow?
Tropical cyclone anniversaries
June 12,
- 1997 - Cyclone Keli, the first post-season tropical cyclone to form in June, reaches peak strength while affecting the Pacific Islands.
- 2004 - Tropical Storm Chanthu (pictured) made landfall in Vietnam, killing seven people. Chanthu caused over 230 mm (9.4 in) of rain.
- 2014 - Hurricane Cristina reaches peak intensity as a Category 4 major hurricane.
June 13,
- 1977 - The 1977 Oman cyclone makes landfall over in eastern Oman killing 105 people in total.
- 2006 - Tropical Storm Alberto made landfall on the Florida Panhandle as a strong tropical storm. Alberto brought heavy rain to the southeastern United States, causing about $500,000 in damage.
- 2015 - Hurricane Carlos (pictured) reaches its peak strength off the coast of Southwestern Mexico, causing about $1 million in damages.
June 14,
- 1904 - The first storm of the 1904 Atlantic hurricane season made landfall in eastern Cuba, killing at least 87 people.
- 1991 - Typhoon Yunya (pictured) reaches Category 3 typhoon intensity prior to making landfall in Luzon in the Philippines the same day as Mount Pinatubo made its largest eruption. The rainfall from the typhoon mixed with the volcanic ash, causing severe lahars.
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