Monday, December 13, 2010

Severe Storms

This collection of images featuring the strongest hurricane, cyclone, or typhoon from any ocean during each year of the past decade includes storms both famous—or infamous—and obscure. The judging is based on the storm with the highest wind speed, using lowest minimum pressure as a tie-breaker when needed. The images were all captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra or Aqua satellites, and they are all shown at the same scale.
Of the decade’s most powerful storms, two were in the Atlantic/Caribbean basin, five were in the Pacific north of the equator, and three were in the South Pacific. Even without looking at the table below, you can identify which storms were in the Northern Hemisphere and which were in the Southern: because of the Coriolis force, northern cyclones rotate counterclockwise, while southern storms rotate clockwise. All storm categories are based on the Saffir-Simspon Hurricane Scale.
StormDate of imageMaximum Wind Speed km/h (mph)Minimum Pressure millibarsBasin
DamreyMay 9, 2000290 (180)878Western Pacific
FaxaiDecember 22, 2001290 (180)915Western Pacific
ZoeDecember 28, 2002285 (177)890South Pacific
MaemiSeptember 10, 2003280 (174)910Western Pacific
ChabaAugust 23, 2004290 (180)879Western Pacific
WilmaOctober 18, 2005295 (183)882Atlantic/Caribbean
MonicaApril 24, 2006285 (177)905South Pacific
DeanAugust 18, 2007280 (174)907Atlantic/Caribbean
JangmiSeptember 27, 2008260 (162)905Western Pacific
RickOctober 18, 2009285 (127)906Eastern Pacific
Many North Americans will recognize Hurricanes Dean (2007) and Wilma (2005). Wilma holds the record for the most intense Atlantic Basin storm on record (based on air pressure), and it made landfall on the island of Cozumel, the Yucatan Peninsula, and Florida. After cutting a devastating path through the Caribbean, Hurricane Dean made a rare Category 5-strength landfall in Mexico.
Even residents around the Western Pacific Basin might not remember the names Damrey (2000) or Faxai (2001); both of these Category 5 super typhoons came and went through the remote Pacific without ever approaching land. Other storms inflicted great damage. Super Typhoon Maemi (2003) was the costliest typhoon ever to hit Korea, killing more than a hundred people. Super Typhoon Chaba (2004) pummeled both the Northern Marianas Islands and Honshu, Japan. Super Typhoon Jangmi (2008), which made landfall across northern Taiwan as a Category 3 storm, was not only the strongest storm of 2008, it was also the only storm worldwide to reach Category 5 strength.
Of the three South Pacific cyclones to appear in this collection, Monica (2006) and Zoe (2002) were nearly equal in terms of strength. Monica crossed the Cape York Peninsula as a Category 2 cyclone, but emerged over the warm waters of the Gulf of Carpentaria and intensified into a Category 5 storm before its second landfall on Northern Territory’s Top End. Cyclone Zoe (2002) traced an erratic path through the Solomons Islands, avoiding major land masses, but the eye passed over the tiny, sparsely populated island of Tikopia at the height of the storm. The strongest storm of 2009 didn’t arrive until October, when Category 5 Hurricane Rick formed in the eastern Pacific. Rick weakened significantly before coming ashore near Mazatlán, Mexico.
Data on maximum wind speed and minimum pressure for Atlantic Basin storms comes from the National Hurricane Center; for Western Pacific storms, from the Japanese Meteorological Agency; for South Pacific storms, the Australian Bureau of Meteorology.

-December 2010-

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