NOAA Infrared Satellite Imagery
Forecasts in Hurricane Origin Zones
Gulf of Mexico
Cape Verde Region-Eastern Atlantic
Current Tropical Cyclones
Probability of Cyclone Formation
Satellite Imagery of Tropics
Cyclone: An atmospheric closed circulation rotating counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
Hurricane / Typhoon: A tropical cyclone in which the maximum sustained surface wind (using the U.S. 1-minute average) is 64 kt (74 mph or 119 km/hr) or more. The term hurricane is used for Northern Hemisphere tropical cyclones east of the International Dateline to the Greenwich Meridian. The term typhoon is used for Pacific tropical cyclones north of the Equator west of the International Dateline.
Tropical Depression: A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) is 33 kt (38 mph or 62 km/hr) or less.
Tropical Disturbance: A discrete tropical weather system of apparently organized convection -- generally 100 to 300 nmi in diameter -- originating in the tropics or subtropics, having a nonfrontal migratory character, and maintaining its identity for 24 hours or more. It may or may not be associated with a detectable perturbation of the wind field.
Tropical Storm: A tropical cyclone
in which the maximum sustained surface wind speed (using the U.S. 1-minute
average) ranges from 34 kt (39 mph or 63 km/hr) to 63 kt (73 mph or 118
Evacuation and Preparation Information by State
|North Carolina||NC Information|
|South Carolina||SC Information|