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Mesoscale Discussion 804
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   Mesoscale Discussion 0804
   NWS Storm Prediction Center Norman OK
   0644 PM CDT Wed Jun 03 2020

   Areas affected...southeast PA into southern NJ

   Concerning...Severe Thunderstorm Watch 244...

   Valid 032344Z - 040115Z

   The severe weather threat for Severe Thunderstorm Watch 244
   continues.

   SUMMARY...Storms ongoing near PHI and the southwestern edge of WW244
   will continue to pose a threat for damaging winds and occasional
   severe hail. Some westward redevelopment is possible but the
   convectively overturned air mass will likely limit the threat to
   ongoing storms.

   DISCUSSION...Severe weather will remain likely across portions of
   WW244 through 0200z. These storms are ongoing ahead of a wind shift/
   surface pressure trough across eastern PA and western Maryland. Very
   warm surface temperatures in the 90s and surface dewpoints in the
   mid to upper 60s F are supporting 1000-1500 J/kg of MLCAPE. Deep
   layer shear of 35-45 will continue to support a mix of isolated
   supercells and bowing segments. Hodographs remain mostly straight
   line which suggests that the primary threat will remain damaging
   wind gusts. Occasional severe hail and a tornado or two cannot be
   ruled out, especially with the more discrete convection toward the
   southwestern end of the watch. A general decrease in convective
   intensity is likely as storms begin to move off shore and daytime
   heating is lost. Until then however, severe weather will remain
   likely.

   ..Lyons/Hart.. 06/03/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...PHI...CTP...

   LAT...LON   40047383 40617609 40487714 40327739 40097740 38977392
               40047383 

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