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Mesoscale Discussion 1391
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   Mesoscale Discussion 1391
   NWS Storm Prediction Center Norman OK
   0143 AM CDT Tue Aug 04 2020

   Areas affected...North Carolina/Virginia border into southeast

   Concerning...Tornado Watch 414...415...

   Valid 040643Z - 040815Z

   The severe weather threat for Tornado Watch 414, 415 continues.

   SUMMARY...Several tornadoes are possible over the near term along
   the North Carolina/Virginia border and into southeastern Virginia.

   DISCUSSION...A long-lived, arcing band of supercells remains intact,
   now crossing the NC/VA border extending from North Hampton to
   Pasquotank counties in NC as of 0640Z.

   The environment ahead of these supercells will remain favorable for
   tornadoes, with a very moist air mass already in place, and
   continued warm advection out of the southeast. The AKQ VWP shows 0-1
   SRH over 300 m2/s2, which greatly supports strong rotation.

   The advancing tropical cyclone will maintain lift with intense
   pressure falls, with additional bands of supercells possibly
   developing tonight.

   ..Jewell.. 08/04/2020

   ...Please see for graphic product...


   LAT...LON   36637569 36297622 36447660 36647699 36697738 37047766
               37247739 37287707 37157634 36977597 36637569 

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