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Mesoscale Discussion 343
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   MESOSCALE DISCUSSION 0343
   NWS STORM PREDICTION CENTER NORMAN OK
   0645 PM CDT FRI APR 17 2015

   AREAS AFFECTED...SE MS...SW AL

   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 

   VALID 172345Z - 180045Z

   PROBABILITY OF WATCH ISSUANCE...5 PERCENT

   SUMMARY...THERE WILL BE A SHORT-TERM HAIL THREAT WITH GRADUALLY
   INCREASING CONVECTION IN SE MS AND SW AL...AND A WW IS NOT
   ANTICIPATED.

   DISCUSSION...ISOLATED THUNDERSTORMS OVER JONES AND GREENE COUNTIES
   IN MS ARE MOVING ESEWD AROUND 15 KNOTS. DEEP SHEAR IS ONLY
   MARGINALLY SUFFICIENT FOR STORM ORGANIZATION...BUT MOVEMENT ALONG
   AND JUST NORTH OF WEAK WNW/ESE ORIENTED BOUNDARY AND ASSOCIATED
   LOCALIZED VORTICITY INGEST ARE CONTRIBUTING TO BRIEF/WEAK ROTATION
   IN THE STRONGEST CELLS...PARTICULARLY OVER GREENE COUNTY. WITH
   MUCAPE AROUND 1500 J/KG INVOF THE STORMS...MARGINALLY SEVERE HAIL
   CANNOT BE RULED OUT WITH THE STRONGEST CELLS. A WW NOT ANTICIPATED
   DUE TO THE BRIEF/MARGINAL NATURE OF THE THREAT.

   ..COOK/COHEN/CORFIDI.. 04/17/2015


   ATTN...WFO...MOB...JAN...

   LAT...LON   31458934 31738925 31888895 31708835 31478787 31108781
               30878787 30828821 30998878 31198897 31458934 

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