View All Articles

What is a Tropical Cyclone?

A Tropical Cyclone – generically describes a low pressure system that typically forms in the tropics.  A collection of strong thunderstorms makeup a cyclone, and in the Northern Hemisphere, surface winds rotate counterclockwise.  In the North Atlantic Ocean, the Northeast Pacific Ocean east of the dateline, or the South Pacific Ocean east of 160E, Tropical cyclones are also called hurricanes, tropical storms, and tropical depressions, depending upon intensity. In different parts of the world these storms have different names such as:
  • Typhoon – the Northwest Pacific Ocean west of the dateline
  • Severe Tropical Cyclone – the Southwest Pacific Ocean west of 160E or Southeast Indian Ocean east of 90E
  • Severe Cyclonic Storm – the North Indian Ocean
  • Tropical Cyclone – the Southwest Indian Ocean
Tropical cyclones require warm ocean temperatures, moisture, and light winds as the basic ingredients for storm development.  If these conditions last long enough a developing tropical cyclone will become a hurricane, producing violent winds, incredible waves, torrential rains and floods. The Atlantic hurricane season begins June 1 and ends November 30. The East Pacific hurricane season runs from May 15 through November 30, with peak activity occurring during July through September.
This entry was posted in Basic Meteorology, Weather Articles and tagged , , , , , , , , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Read More

Nebraska Iowa severe storms SPC outlook map, Sept. 14, 2026: Slight Risk over Omaha and Des Moines inside a Marginal Risk

Nebraska Iowa Severe Storms: Slight Risk of Large Hail, Damaging Wind, and Tornadoes September 14, 2026

Nebraska Iowa severe storms are the main severe weather concern in the United States on Monday, September 14, 2026. The NOAA Storm Prediction Center (SPC) has placed eastern Nebraska into western and central Iowa under a…

Read More

Tropical Storm Norbert forecast track on September 13, 2026, showing the 45 mph storm about 1,375 miles east of Hilo, Hawaii, weakening to a remnant low by Tuesday night

Tropical Storm Norbert Forecast: 45 mph Storm Weakens 1,375 Miles East of Hilo, Hawaii

iAlert hurricane tracker satellite view of the Tropical Storm Norbert forecast from the 11 AM HST advisory on Sunday, September 13, 2026, with the Hawaiian Islands highlighted. Green S markers show Norbert at tropical storm strength…

Read More

Tropical Storm Norbert forecast cone on September 12, 2026, tracking west over the East Pacific and weakening east of Hawaii

Tropical Storm Norbert Holds 60 mph Winds Far East of Hawaii, No Coastal Watches in Effect

iAlert hurricane tracker forecast track from the 5 AM HST advisory on Saturday, September 12, 2026. Green S markers show Norbert at tropical storm strength from Saturday through 2 AM Tuesday. Blue D markers show the…

Read More

Leave a Reply