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Mesoscale Discussion 408
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   MESOSCALE DISCUSSION 0408
   NWS STORM PREDICTION CENTER NORMAN OK
   0321 PM CDT SAT APR 26 2014

   AREAS AFFECTED...NRN VA...ERN WV PANHANDLE...MD...DE...DC...SERN
   PA...SRN NJ

   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 

   VALID 262021Z - 262200Z

   CORRECTED FOR GEOGRAPHIC DESCRIPTION

   PROBABILITY OF WATCH ISSUANCE...5 PERCENT

   SUMMARY...CONVECTIVE SHOWERS/ISOLATED THUNDERSTORMS CAPABLE OF
   PRODUCING GUSTY WINDS ARE POSSIBLE THIS AFTERNOON. WATCH ISSUANCE
   SHOULD NOT BE NEEDED.

   DISCUSSION...DESPITE DRY CONDITIONS WITH DEWPOINTS CURRENTLY IN THE
   30S TO LOW 40S...DIURNAL HEATING AND COLD TEMPERATURES ALOFT WILL
   PROMOTE THE DEVELOPMENT OF CONVECTIVE SHOWERS AND A FEW
   THUNDERSTORMS THIS AFTERNOON INTO EARLY EVENING. WHILE CONVECTION IS
   NOT EXPECTED TO BE PARTICULARLY INTENSE...STEEP LOW-LEVEL LAPSE
   RATES AND 50-60 KTS OF FLOW AT 3 KM WILL FAVOR GUSTY WINDS WITH THE
   STRONGER CORES. WHILE ISOLATED GUSTS NEAR SEVERE LIMITS ARE
   POSSIBLE...THE OVERALL THREAT APPEARS TO BE TOO LOW FOR WATCH
   ISSUANCE. THE WIND THREAT WILL DIMINISH THIS EVENING AS BOUNDARY
   LAYER COOLING COMMENCES.

   ..DEAN/THOMPSON.. 04/26/2014


   ATTN...WFO...OKX...PHI...AKQ...CTP...LWX...

   LAT...LON   37857572 38067750 38247870 38627902 39317896 40027837
               40497716 40787509 40607417 40217403 39667419 39037475
               38587503 37857572 

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Page last modified: April 26, 2014
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