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Mesoscale Discussion 530
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   MESOSCALE DISCUSSION 0530
   NWS STORM PREDICTION CENTER NORMAN OK
   0243 AM CDT MON MAY 02 2016

   AREAS AFFECTED...SOUTHEAST TX...WEST LA...SOUTH AR

   CONCERNING...01Z OUTLOOK UPGRADE 

   VALID 020743Z - 020945Z

   SUMMARY...THE REGION IS EFFECTIVELY UPGRADED TO MARGINAL/SLIGHT
   RISKS THROUGH THE REST OF THE CURRENT OUTLOOK PERIOD ENDING AT 12Z.
   SEVERE THUNDERSTORM WATCH ISSUANCE IS BEING CONSIDERED.

   DISCUSSION...A FEW SUPERCELLS ARE ONGOING WITHIN THE SWATH OF
   SCATTERED STORMS ACROSS SOUTHEAST TX INTO SOUTH AR. PRESENCE OF
   ROBUST SPEED SHEAR WITHIN THE ELEVATED BUOYANT LAYER CONTINUES TO
   FOSTER UPDRAFT ROTATION PROMOTING LARGE HAIL GROWTH FROM SPLITTING
   CELLS. THE LARGELY DISCRETE NATURE OF THE CONVECTION HAS MAINTAINED
   WELL-DEVELOPED SUPERCELL STRUCTURES. WITHIN THE DIFFLUENT FLOW
   REGIME IN LEFT-EXIT REGION OF AN UPPER JET...STORMS WILL LIKELY
   PERSIST FOR THE NEXT SEVERAL HOURS.

   ..GRAMS/GOSS.. 05/02/2016


   ATTN...WFO...JAN...LZK...LCH...SHV...HGX...FWD...

   LAT...LON   31719613 32589463 33559245 33839148 33609098 33209087
               32709108 30359275 29669327 29249451 30019587 31009636
               31719613 

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