Portal:Tropical cyclones
The Tropical Cyclones Portal
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The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in
. 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".Types of cyclone: 1. A "Typhoon" is a tropical cyclone located in the North-west Pacific Ocean which has the most cyclonic activity and storms occur year-round. 2. A "Hurricane" is also a tropical cyclone located at the North Atlantic Ocean or North-east Pacific Ocean which have an average storm activity and storms typically form between May 15 and November 30. 3. A "Cyclone" is a tropical cyclone that occurs in the South Pacific and Indian Oceans.
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The effects of Typhoon Bopha in the Caroline Islands were significant, though limited in extent in comparison to the cyclone's intensity. Typhoon Bopha originated from a tropical depression south of Pohnpei on November 25, 2012, and tracked generally westward for more than a week. During this time, it threatened several islands across Micronesia, prompting the issuance of typhoon watches and warnings. The system skirted the Nomoi Islands on November 28 where it caused limited damage. Thereafter, it became a threat to Palau as an intense typhoon. Residents there boarded up their homes and some evacuated to public shelters while officials enacted a strict curfew during the typhoon's passage. Bopha passed 55 km (34 mi) south of Angaur island, or 100 km (62 mi) south of Babeldaob, on December 2 with winds of 185 km/h (115 mph).
Damage was most severe in the states of Angaur, Melekeok, Ngiwal, and Ngaraard where storm surge damaged or destroyed many homes. Electricity and water service in many areas was lost during the storm, and remained so for over a week in the hardest hit areas. Throughout Palau, 92 homes were destroyed while 59 others sustained severe damage. Total damage amounted to US$10.1 million with repair costs estimated at US$15–20 million. A state of emergency was declared on December 5 while the Palau Red Cross Society assisted with recovery efforts. Palau's congress allocated US$10 million for relief while international donors provided a collective US$235,000 in aid. (Full article...)Selected image -
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Currently active tropical cyclones
Italicized basins are unofficial.
- North Atlantic (2024)
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- East and Central Pacific (2024)
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- West Pacific (2024)
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- North Indian Ocean (2024)
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- Mediterranean (2023–24)
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- South-West Indian Ocean (2023–24)
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- Australian region (2023–24)
- Tropical Low 15U
- South Pacific (2023–24)
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- South Atlantic (2023–24)
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Last updated: 04:38, 20 April 2024 (UTC)
Tropical cyclone anniversaries
April 24
- 1987 - Cyclone Elizabeta reached peak intensity with 1-minute sustained winds of 140 km/h (90 mph), while it was south of Madagascar.
- 2001 - Cyclone Alistair (pictured) made landfall near Carnarvon, Western Australia. The highest reported wind gust was 90 km/h (55 mph).
April 25
- 1998 - Cyclone Alan moved through French Polynesia, causing ten deaths, mostly related to landslides from its heavy rainfall.
- 2019 - Cyclone Kenneth (pictured) became the strongest recorded tropical cyclone to strike Mozambique, hitting the northeastern portion of the country with 1 minute winds of 220 km/h (140 mph). Kenneth killed 52 people along its path through the Comoros and southeast Africa.
April 26
- 1976 - Cyclone Watorea (pictured) reached peak intensity while nearing Queensland, before rapidly moving to the southeast, as it exited the basin and affected New Zealand.
- 1999 - Tropical Storm Kate reached its peak intensity with winds of 140 km/h (85 mph) in the Philippine Sea. Kate had only minimal effects on land in the Philippines and Iwo Jima.
Did you know…
- …that the Joint Typhoon Warning Center considers that Typhoon Vera (pictured) of 1986 is actually two distinct systems, formed from two separated low-level circulations?
- …that Hurricane Agatha (pictured) was the strongest Pacific hurricane to make landfall in Mexico in May since records began in 1949?
- …that Cyclone Raquel (track pictured) travelled between the Australian and South Pacific basins between the 2014–15 and 2015–16 seasons, spanning both seasons in both basins?
- …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?
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The initial extratropical low-pressure area forms at the location of the red dot on the image. It is usually perpendicular (at a right angle to) the leaf-like cloud formation seen on satellite during the early stage of cyclogenesis. The location of the axis of the upper level jet stream is in light blue. (from Cyclone) -
Hurricane response involves working in hazardous conditions, including contamination and electrocution hazards from floodwater. -
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Flooding in Port Arthur, Texas caused by Hurricane Harvey. Harvey was the wettest and second-costliest tropical cyclone in United States history. (from Effects of tropical cyclones) -
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Aerial image of destroyed houses in Tacloban, following Typhoon Haiyan (from Effects of tropical cyclones) -
Hurricane Catarina, a rare South Atlantic tropical cyclone viewed from the International Space Station on March 26, 2004 (from Cyclone) -
Comparison between extratropical and tropical cyclones on surface analysis (from Cyclone) -
All but the most expensive bottles of water were sold out at this Publix supermarket before Hurricane Irma; in the week preceding the storm, water sold out soon after shipments arrived (from Tropical cyclone preparedness) -
An extratropical cyclone near Iceland (from Cyclone) -
Surface weather map of the 1935 Labor Day hurricane moving up the west coast of Florida (from Tropical cyclone observation) -
The aftermath of Hurricane Katrina in Gulfport, Mississippi. Katrina was the costliest tropical cyclone in United States history. (from Effects of tropical cyclones) -
A polar low over the Sea of Japan in December 2009 (from Cyclone) -
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A fictitious synoptic chart of an extratropical cyclone affecting the UK and Ireland. The blue arrows betweenisobars indicate the direction of the wind, while the "L" symbol denotes the centre of the "low". Note the occluded, cold and warm frontal boundaries. (from Cyclone) -
Tropical cyclones form when the energy released by the condensation of moisture in rising air causes apositive feedback loop over warm ocean waters. (from Cyclone) -
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Chart with concurrent information forTropical Storm Bret logged and plotted (from Tropical cyclone preparedness) -
An example of a chart for Matthew showing its five-day forecast track (from Tropical cyclone preparedness) -
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Hurricane Isabel (2003)'s effect on the North Carolina Outer Banks (from Effects of tropical cyclones) -
Personnel and equipment from theNational Guard of the United States en route to Hurricane Florenceresponse efforts in 2018 -
The number of $1 billion Atlantic hurricanes almost doubled from the 1980s to the 2010s, and inflation-adjusted costs have increased more than elevenfold. The increases have been attributed to climate change and to greater numbers of people moving to coastal areas. (from Effects of tropical cyclones) -
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Radar image of Hurricane Erika making landfall over Northeastern Mexico (from Tropical cyclone observation) -
The dangerous semicircle is the upper-right corner, with the arrow marking the direction of motion of a Northern Hemisphere storm. Note that typhoons, etc. are asymmetrical, and semicircle is a convenient misnomer. (from Effects of tropical cyclones) -
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Percentages of hurricane deaths in the United States from 1970 to 1999. (from Effects of tropical cyclones) -
2017 Atlantic hurricane season summary map (from Cyclone) -
Broken concrete utility pole in Puerto Rico after Hurricane Maria in 2017, which ranks fourth in costliest US tropical cyclones. (from Effects of tropical cyclones) -
Cyclone on Mars, imaged by the Hubble Space Telescope (from Cyclone)
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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 Weather is the main center point of coordination for Wikipedia's coverage of meteorology in general, and the parent project of WikiProject Tropical cyclones. Three other branches of WikiProject Weather in particular share significant overlaps with WikiProject Tropical cyclones:
- The Non-tropical storms task force coordinates most of Wikipedia's coverage on extratropical cyclones, which tropical cyclones often transition into near the end of their lifespan.
- The Floods task force takes on the scope of flooding events all over the world, with rainfall from tropical cyclones a significant factor in many of them.
- WikiProject Severe weather documents the effects of extreme weather such as tornadoes, which landfalling tropical cyclones can produce.
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