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Mesoscale Discussion 1092
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   MESOSCALE DISCUSSION 1092
   NWS STORM PREDICTION CENTER NORMAN OK
   0737 PM CDT SAT JUN 20 2015

   AREAS AFFECTED...SERN PA...SRN/CNTRL NJ...DE...ERN MD

   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 

   VALID 210037Z - 210130Z

   PROBABILITY OF WATCH ISSUANCE...80 PERCENT

   SUMMARY...A NEW WW WILL LIKELY BE ISSUED SOON TO ACCOUNT FOR
   UPSTREAM MCS MOVING INTO THE REGION. THE PRIMARY THREAT IS EXPECTED
   TO BE DMGG WIND GUSTS...ALTHOUGH A BRIEF/WEAK TORNADO OR TWO WILL BE
   POSSIBLE.

   DISCUSSION...CONGEALING LINE OF TSTMS ACROSS THE MID-ATLANTIC IS
   PROGRESSING NEWD AT AROUND 35 KT...AND SHOULD REACH SERN PA INTO THE
   CHESAPEAKE BAY BETWEEN 0100-0130Z. GIVEN CONVECTIVE MODE...PRIMARY
   THREAT WILL LIKELY REMAIN DMGG WINDS...BUT TRANSIENT EMBEDDED
   SUPERCELL STRUCTURES AND ASSOCIATED POTENTIAL FOR A WEAK/BRIEF
   TORNADO SHOULD CONTINUE FOR THE NEXT FEW HRS...ESPECIALLY INVOF SELY
   WINDS OBSERVED ACROSS NRN PARTS OF THE DELMARVA PENINSULA INTO
   NJ/SERN PA. A NEW WW WILL LIKELY BE PROPOSED SOON FOR PARTS OF SERN
   PA...SRN/CNTRL NJ...DE...AND ERN MD.

   ..ROGERS/HART.. 06/21/2015


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

   LAT...LON   40057381 37827514 37287602 37837639 39017601 40037598
               40517558 40657454 40377389 40057381 

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Page last modified: June 21, 2015
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