Neuro Posted September 13, 2017 Share Posted September 13, 2017 Hurricane Irma Blasts Into The Record Books With Lasting Intensityhttp://www.npr.org/sections/thetwo-way/2017/09/12/550188154/hurricane-irma-blasts-into-the-record-books-with-lasting-intensity There's a really nice animation by NPR. "Hurricane Irma was the longest-lasting powerful hurricane or typhoon ever recorded, worldwide.". "Irma sustained its 185-mph winds for 37 hours". How Powerful Can A Hurricane Get?http://www.iflscience.com/environment/how-powerful-can-a-hurricane-get/ "The scale is relatively simple: Tropical Depression = less than 63 km/h (less than 39 mph) Tropical Storm = 63-118 km/h (39-73 mph) Category One Hurricane = 119-153 km/h (74-95 mph) Category Two Hurricane = 154-177 km/h (96-110 mph) Category Three Hurricane = 178-208 km/h (111-129 mph) Category Four Hurricane = 209-250 km/h (130-156 mph) Category Five Hurricane = greater than 252 km/h (>156 mph)" Quote Link to comment Share on other sites More sharing options...
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