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Mesoscale Discussion 208
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   MESOSCALE DISCUSSION 0208
   NWS STORM PREDICTION CENTER NORMAN OK
   0931 PM CDT FRI APR 03 2015

   AREAS AFFECTED...PORTIONS OF CNTRL-ERN AL...NRN GA

   CONCERNING...SEVERE THUNDERSTORM WATCH 25...26...

   VALID 040231Z - 040430Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   25...26...CONTINUES.

   SUMMARY...SEVERAL CLUSTERS OF THUNDERSTORMS WILL GRADUALLY PUSH
   SOUTHEAST ACROSS THE AREA THIS EVENING. THE THREAT FOR A FEW STRONG
   WIND GUSTS AND A BRIEF/WEAK TORNADO WILL CONTINUE ACROSS WW 25 AND
   26...BUT A GRADUAL WEAKENING TREND IS EXPECTED TO CONTINUE THIS
   EVENING. NO DOWNSTREAM WW IS ANTICIPATED.

   DISCUSSION...LATEST WSR-88D MOSAIC DISPLAYED A BROKEN LINE OF SEVERE
   THUNDERSTORMS STRETCHING FROM CULLMAN CO AL TO CHEROKEE CO NC...IN
   RESPONSE TO A COLD FRONT/ORGANIZED COLD POOL CONTINUING TO PROGRESS
   SEWD ACROSS THE REGION. THIS BAND OF STORMS HAS DISPLAYED OCCASIONAL
   ORGANIZATION THIS EVENING WITH BRIEF CIRCULATIONS...BOWING
   SEGMENTS...AND BRIEF EMBEDDED SUPERCELL STRUCTURES...WHICH IS LIKELY
   IN RESPONSE TO AMPLE DEEP-LAYER SHEAR ON THE ORDER OF 40-45 KTS.
   SUCH ORGANIZATION WILL CONTINUE TO YIELD A THREAT FOR A FEW DAMAGING
   WIND GUSTS AND/OR A BRIEF/WEAK TORNADO. HOWEVER...THIS CLUSTER OF
   CELLS WILL ENCOUNTER A HARSHER THERMODYNAMIC ENVIRONMENT
   CHARACTERIZED BY MEAGER MID-LEVEL LAPSE RATES AND SFC TDS IN THE
   LOWER-MID 50S AS IT PUSHES FARTHER SE. IN COMBINATION WITH BL
   STABILIZATION WITH THE LOSS OF INSOLATION...THESE FACTORS WILL LEAD
   TO A WEAKENING TREND OVER THE NEXT FEW HOURS AS THE CELLS PROGRESS
   SEWD. THEREFORE...DOWNSTREAM WW ISSUANCE IS NOT ANTICIPATED.

   ..PICCA.. 04/04/2015


   ATTN...WFO...GSP...MRX...FFC...BMX...HUN...

   LAT...LON   33628659 33528755 33488803 33878762 34618580 35168397
               35238320 34518308 33798353 33698533 33628659 

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Page last modified: April 04, 2015
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