Extreme wind warning

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In National Weather Service (NWS) terminology, an extreme wind warning (EWW) is a warning issued when a landfalling hurricane is expected to bring winds of 100 knots (115 mph, 185 km/h, 51 m/s) to a specific location. The warning is issued just prior to when the strongest winds of the eyewall are expected to impact an area.[1]

The warning is to be issued for the smallest area possible, and be valid for times of two hours or less.[1] It was developed in response to confusion resulting from the landfall of Hurricane Katrina. NWS offices in Jackson and New Orleans/Baton Rouge issued 11 tornado warnings for areas that would not experience an actual tornado, but would experience extreme wind speeds commonly associated with tornadoes.[2] The extreme wind warning is now expected to be used in these situations.

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  1. ^ a b National Weather Service. "Product Description Document: Extreme Wind Warning (EWW)" (PDF). Retrieved 2007-10-04. 
  2. ^ U.S. Department of Commerce. "Service Assessment. Hurricane Katrina: August 23–31, 2005" (PDF). Retrieved 2007-10-04.