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Mesoscale Discussion 815
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   MESOSCALE DISCUSSION 0815
   NWS STORM PREDICTION CENTER NORMAN OK
   0517 PM CDT WED MAY 27 2015

   AREAS AFFECTED...CENTRAL AND NE MAINE

   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 

   VALID 272217Z - 272315Z

   PROBABILITY OF WATCH ISSUANCE...20 PERCENT

   SUMMARY...ISOLATED SEVERE WIND GUSTS AND LARGE HAIL ARE POSSIBLE
   ACROSS CENTRAL AND NE MAINE OVER THE NEXT HOUR OR SO...BUT WATCH IS
   NOT NEEDED.

   DISCUSSION...A BROKEN LINE OF STRONG TO SEVERE THUNDERSTORMS HAVE
   DEVELOPED FROM CENTRAL TO NE MAINE. SOME OF THESE STORMS WILL POSE A
   DAMAGING WIND AND ISOLATED LARGE HAIL THREAT DUE TO 500-1000 J/KG OF
   MUCAPE...DEEP LAYER SHEAR AROUND 35 KNOTS...AND 20F DEWPOINT
   DEPRESSIONS SUPPORTING SOME DOWNBURST POTENTIAL. ISOLATED BRIEF
   ROTATION HAS DEVELOPED IN THE STRONGEST STORMS...ALSO LOCALLY
   ENHANCING THE DOWNBURST THREAT. A GRADUAL WEAKENING TREND SHOULD
   COMMENCE WITHIN THE NEXT HOUR AS STORMS MOVE EAST INTO A MORE STABLE
   ATMOSPHERE. GIVEN THE BRIEF TEMPORAL NATURE OF THE SEVERE THREAT...A
   WW IS NOT ANTICIPATED AT THIS TIME.

   ..COOK.. 05/27/2015


   ATTN...WFO...CAR...GYX...

   LAT...LON   47846882 47946871 47846882 

   45626977 46166933 46756858 47046782 46646778 46266778 46116795
               45456858 44966932 45626977 

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Page last modified: May 27, 2015
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