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Mesoscale Discussion 164
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   MESOSCALE DISCUSSION 0164
   NWS STORM PREDICTION CENTER NORMAN OK
   0341 PM CDT TUE MAR 31 2015

   AREAS AFFECTED...CNTRL/NRN AL...NWRN/CNTRL GA

   CONCERNING...SEVERE THUNDERSTORM WATCH 9...

   VALID 312041Z - 312145Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 9 CONTINUES.

   SUMMARY...THREAT FOR LARGE HAIL AND DMGG WINDS PERSISTS ACROSS A
   CORRIDOR FROM NRN/CNTRL AL INTO NRN/CNTRL GA.

   DISCUSSION...RADAR TRENDS CONTINUE TO GRADUALLY INCREASE ACROSS WW 9
   WITH A FEW SUPERCELLS AND MULTIPLE CELL SPLITS NOTED WITHIN THE PAST
   1-2 HRS ACROSS NRN AL AND W-CNTRL GA. LARGELY UNIDIRECTIONAL
   DEEP-LAYER WIND PROFILES...FEATURING FAST MIDLEVEL FLOW ATOP WEAK
   LOW-LEVEL FLOW...WILL CONTINUE TO SUPPORT CELL SPLITS WITH DISCRETE
   CONVECTION. HOWEVER...AN INCREASE IN CONVECTIVE COVERAGE AND
   SUBSEQUENT CELL INTERACTIONS/MERGERS MAY EVENTUALLY RESULT IN THE
   EVOLUTION OF A COUPLE CLUSTERS...WITH AN ASSOCIATED RISK OF STRONG
   TO SVR WINDS POSSIBLE. 

   MEANWHILE...AN UPSTREAM IMPULSE IS CROSSING THE MS RIVER INTO NRN
   MS...AND MAY ACT AS AN ADDITIONAL IMPETUS FOR CONVECTIVE DEVELOPMENT
   ACROSS NRN AL OVER THE NEXT SEVERAL HRS. THIS SHOULD MAINTAIN A
   THREAT FOR LARGE HAIL AND DMGG WIND GUSTS ACROSS THE WW AREA INTO
   THE EVENING.

   ..ROGERS.. 03/31/2015


   ATTN...WFO...CHS...FFC...BMX...HUN...MEG...JAN...

   LAT...LON   32558207 31848282 32078491 33038780 33658828 34288814
               34778798 34808633 34458508 33638422 32908238 32558207 

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Page last modified: March 31, 2015
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