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NOAA National Weather Service Improves Tornado Rating System at NOAA News; The Enhanced Fujita Scale (EF Scale) at Storm Prediction Center; EF-Scale Training Archived June 21, 2017, at the Wayback Machine at The Warning Decision Training Branch of National Weather Service (NWS) The Enhanced Fujita Tornado Scale at National Climatic Data Center
[1] [3] When a system becomes a Category 3 hurricane with winds of between 96 and 112 kn (110 and 129 mph; 178 and 207 km/h), it is considered to be a major hurricane by the warning centers. [3] A Category 4 hurricane has winds of 113 to 136 kn (130 to 157 mph; 209 to 252 km/h), while a Category 5 hurricane has winds of at least 137 kn (158 mph ...
Learn about the formation and characteristics of hurricanes, typhoons and tornadoes.
The National Weather Service in Wilmington issued a tornado watch late Tuesday for parts of western Ohio as a strong storm system began to enter the region. What is a tornado watch?
When that happens, knowing the difference between a tornado watch vs. warning can make a huge difference in your weather preparedness. The terms are often confused and aren't quite intuitively ...
Warnings are issued when severe weather is either imminent or occurring. Warnings for synoptic scale events such as snowstorms are issued with an ideal lead time of at least six, and up to 24 hours. Severe thunderstorm warnings and tornado warnings, by their nature, will typically be issued with very little lead time.
Stay informed and be prepared. These tips from the National Weather Service and the city of Fort Worth could save your life during thunderstorms, tornadoes or flooding.