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Severe Thunderstorm Watch 402
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WW0402 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL2

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 402
   NWS Storm Prediction Center Norman OK
   300 PM EDT Thu Jul 29 2021

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     District Of Columbia
     Western Maryland and the Eastern Shore
     Northern Virginia
     Eastern Panhandle of West Virginia
     Coastal Waters

   * Effective this Thursday afternoon and evening from 300 PM until
     900 PM EDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph possible
     Isolated large hail events to 1.5 inches in diameter possible

   SUMMARY...Thunderstorms are expected to develop soon along the
   mountains of western Virginia and spread eastward across the watch
   area.  The strongest cells will be capable of damaging wind gusts
   and hail.

   The severe thunderstorm watch area is approximately along and 45
   statute miles north and south of a line from 60 miles west southwest
   of Martinsburg WV to 40 miles east northeast of Wallops VA. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU2).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Severe Thunderstorm Watch means conditions are
   favorable for severe thunderstorms in and close to the watch area.
   Persons in these areas should be on the lookout for threatening
   weather conditions and listen for later statements and possible
   warnings. Severe thunderstorms can and occasionally do produce
   tornadoes.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 401...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27030.

   ...Hart
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Page last modified: July 30, 2021
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