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Mesoscale Discussion 462
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   MESOSCALE DISCUSSION 0462
   NWS STORM PREDICTION CENTER NORMAN OK
   0556 PM CDT MON APR 28 2014

   AREAS AFFECTED...CNTRL AND ERN AL THROUGH WCNTRL AND NWRN GA

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 282256Z - 290000Z

   PROBABILITY OF WATCH ISSUANCE...40 PERCENT

   SUMMARY...ISOLATED STORMS HAVE INITIATED OVER WCNTRL GA JUST
   SOUTHWEST OF ATLANTA. THIS ACTIVITY IS WELL EAST OF THE PRIMARY BAND
   OF SEVERE STORMS. THE ENVIRONMENT FROM ERN AL INTO GA IS ALREADY
   SUFFICIENT FOR SUPERCELLS WITH LARGE HAIL...AND IS EXPECTED TO
   BECOME INCREASINGLY FAVORABLE FOR TORNADOES THIS EVENING. CONVECTIVE
   AND MESOSCALE TRENDS ARE BEING MONITORED FOR A POSSIBLE TORNADO
   WATCH.

   DISCUSSION...EARLY THIS EVENING AN ISOLATED STORM HAS DEVELOPED
   ALONG ONE OF MANY CUMULUS BANDS WITHIN THE UNSTABLE BOUNDARY LAYER
   ABOUT 40 MILES SW OF THE ATLANTA AREA MOVING NWD. THE ATMOSPHERE
   REMAINS MODERATELY UNSTABLE...AND WHILE 0-1 KM HODOGRAPHS ARE NOT AS
   SIZEABLE AS FARTHER WEST...EFFECTIVE SHEAR FROM 40-45 KT IS
   FAVORABLE FOR SUPERCELLS. THE STORM HAS ALREADY TAKEN ON SOME
   SUPERCELL CHARACTERISTICS AND APPEARS TO HAVE SPLIT...WITH THE LEFT
   MOVER LIFTING ALMOST DUE NORTH. IF THESE STORMS CONTINUE TO
   ORGANIZE...A TORNADO WATCH MAY BE NEEDED GIVEN INCREASINGLY
   FAVORABLE HODOGRAPHS AS THE LLJ DEVELOPS EWD.

   ..DIAL/HART.. 04/28/2014


   ATTN...WFO...FFC...BMX...HUN...

   LAT...LON   32508795 34578547 34188424 32398510 32508795 

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Page last modified: April 29, 2014
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