Tropical Cyclones Portal
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
Purge cache to show recent changes
The 1970 Bhola cyclone was a devastating tropical cyclone that struck East Pakistan (now Bangladesh) on November 12, 1970. It was the deadliest tropical cyclone ever recorded, and one of the deadliest natural disasters of modern times. Up to 500,000 people lost their lives in the storm, mostly as a result of the storm surge that flooded many of the low-lying islands of the Ganges Delta. This cyclone was the sixth cyclonic storm of the 1970 North Indian Ocean cyclone season and was also the most powerful, reaching a strength equivalent to a Category 3 hurricane.
The cyclone formed over the central Bay of Bengal on November 8 and moved north, intensifying as it did so. It reached its peak with winds of 185 km/h (115 mph) on November 12 and made landfall on the East Pakistan coast that night. The storm surge devastated many of the offshore islands, wiping out villages and destroying crops throughout the region. In the most severely affected Thana, Tazumuddin, over 45% of the population of 167,000 was killed by the storm.
The Pakistani government was severely criticised for its handling of the relief operations following the storm, both by local political leaders in East Pakistan and in the international media. The opposition Awami League gained a landslide victory in the province and continuing unrest between East Pakistan and the central government trigged the Bangladesh Liberation War, which concluded with the creation of the state of Bangladesh.
Recently featured: Hurricane Fico — Hurricane Bob (1985) — Typhoon Ewiniar (2006) — 1998 Pacific typhoon season — List of named tropical cyclones — Hurricane Vince (2005) — Meteorological history of Hurricane Wilma — Browse
Currently active tropical cyclones
- … that Hurricane Faith (pictured) was tracked until it was located 600 miles (965 km) from the North Pole?
Tropical cyclone anniversaries
Here are some tasks you can do
- Requests: Original-content tropical cyclone articles: 1935 Haiti hurricane, 1926 Havana-Bermuda Hurricane, Typhoon Bilis (2000), more
- Copyedit: Hurricane Elida (2002), Effects of Hurricane Dennis in Florida, Criticism of government response to Hurricane Katrina
- Wikify: Make sure tropical cyclone lists, such as List of Texas hurricanes, have storm articles properly linked
- Cleanup: Hurricane Rita, Hurricane Wilma, Tropical Storm Fay (2002)
- Expand: Indianola Hurricane of 1886, Typhoon Nina (1975), Typhoon Durian
- Stubs: 1931 Belize hurricane, History of tropical cyclone-spawned tornadoes, more...
- Update: Hurricane Stan and Tropical Depression Sixteen (2008)
What are hurricanes, typhoons and tropical cyclones?
What are hurricanes, typhoons and tropical cyclones and how do they form? James Chubb explains how we classify the different storms and how they are ...
Matric Revision: Geography: Climatology (3/8): Tropical Cyclones
Characteristics, stages and how managed. Series brought to you by Western Cape Education Department FET Curriculum and Communication Directorates in ...
CNN Explains: Tropical cyclones
CNN Meteorologist Ivan Cabrera explains what a tropical cyclone is and why they are a necessary evil.
Understanding tropical cyclone categories
Improve your understanding of tropical cyclone categories and their impacts. This video explains what the different tropical cyclones categories are, the hazards ...
C18-Tropical Cyclones,Favourable Conditions,Origin and Development,Distribution
Geography for UPSC IAS by www.pmfias.com Notes Links http://www.pmfias.com/2015/08/climatology-tropical-cyclones-part-1.html ...
Tropical Cyclogenesis- Tropical Cyclone Formation
Learn the basics of tropical cyclones. This video series covers the fundamentals of tropical cyclogenesis. Text Version: ...
C21-Tropical cyclone and Temperate Cyclone: Comparision
Geography for UPSC IAS by www.pmfias.com Tropical Cyclones and Temperate Cyclones (Extratropical Cyclones, Mid latitude cyclones)-Comarision ...
Download the Show Notes: http://www.mindset.co.za/learn/sites/files/LXL2014/LXL_Gr12Geography_02_Tropical%20Cyclones_13Feb2014.pdf In this live ...
Super Hurricanes and Typhoons
Hurricanes, typhoons, tropical cyclones: they are creatures of tropical seas, sweeping up heat laden waters, converting it to wind, rain, and waves. Why do a rare ...
How cyclones form
We're sorry, but there's no news about "Tropical cyclones" right now.
Oops, we seem to be having trouble contacting Twitter
Digplanet also receives support from Searchlight Group.