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Mesoscale Discussion 1423
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MD 1423 graphic

   MESOSCALE DISCUSSION 1423
   NWS STORM PREDICTION CENTER NORMAN OK
   0826 PM CDT TUE JUL 14 2015

   AREAS AFFECTED...WESTERN/NORTHERN VA AND DC METRO/CENTRAL MD TO
   NORTHWEST NC

   CONCERNING...SEVERE THUNDERSTORM WATCH 426...

   VALID 150126Z - 150300Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 426
   CONTINUES.

   SUMMARY...ISOLATED DAMAGING WIND GUSTS REMAIN THE PRIMARY CONCERN
   PARTICULARLY ACROSS WESTERN VA...BUT POTENTIALLY ALSO PARTS OF
   NORTHERN VA/CENTRAL MD AND THE DC METRO AS WELL AS NORTHWEST NC.
   SEVERE THUNDERSTORM WATCH 426 CONTINUES UNTIL 05Z.

   DISCUSSION...AN ORGANIZED SQUALL LINE CONTINUES TO STEADILY PROGRESS
   SOUTHEASTWARD ACROSS THE FAR WESTERN VA MOUNTAINS...WITH OTHER
   RECENT INTENSIFICATION OF LINEARLY ORGANIZED STORMS ACROSS WESTERN
   VA IN AREAS NEAR/JUST EAST OF THE BLUE RIDGE AS OF 915 PM EDT/0115Z.
   LOCALLY DAMAGING WINDS WILL REMAIN A CONCERN WITH THE SQUALL LINE
   ACROSS FAR WESTERN VA INTO NORTHWEST NC...BUT A GENERAL TREND OF
   WEAKER NEAR-SURFACE GUSTS SEEMS PROBABLE OVER THE NEXT 1-2 HOURS
   GIVEN THE THERMODYNAMIC PROFILE OF THE 00Z OBSERVED SOUNDING FROM
   GREENSBORO NC...WHICH REFLECTED RELATIVELY WEAK CAPE/AMPLE
   INHIBITION. MEANWHILE...SOME ADDITIONAL INCREASE IN
   STRONG/POTENTIALLY SEVERE THUNDERSTORMS IS POSSIBLE...AT LEAST FOR
   THE NEXT COUPLE OF HOURS...MAINLY ACROSS WEST-CENTRAL VA AS A
   RESIDUAL COLD POOL INTERCEPTS A MODERATELY UNSTABLE AIR MASS ACROSS
   MUCH OF CENTRAL/NORTHERN VA TO NEARBY INTERIOR MD.

   ..GUYER.. 07/15/2015


   ATTN...WFO...AKQ...LWX...RAH...RNK...MRX...

   LAT...LON   39487733 39287677 37847723 37317785 36237983 36368171
               36808208 37368015 37867892 38817782 39487733 

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Page last modified: July 15, 2015
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