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Mesoscale Discussion 467
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   MESOSCALE DISCUSSION 0467
   NWS STORM PREDICTION CENTER NORMAN OK
   1029 PM CDT MON APR 28 2014

   AREAS AFFECTED...WRN NC...WRN SC AND NERN GA

   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

   VALID 290329Z - 290430Z

   PROBABILITY OF WATCH ISSUANCE...60 PERCENT

   SUMMARY...SEVERE THREAT MAY INCREASE FROM WRN NC...WRN SC THROUGH
   NERN GA. THREAT WILL EXIST FOR SUPERCELLS CAPABLE OF PRODUCING
   ISOLATED TORNADOES...LARGE HAIL AND DAMAGING WIND.

   DISCUSSION...SCATTERED CONVECTION INCLUDING A FEW THUNDERSTORMS ARE
   DEVELOPING WITHIN ZONE OF WARM ADVECTION FROM NERN GA THROUGH WRN
   NC. A COUPLE OF THESE STORMS HAVE TAKEN ON AT LEAST MARGINAL
   SUPERCELL CHARACTERISTICS. VWP DATA INDICATE 35-40 KT DEEP SHEAR AND
   100-150 M2/S2 0-1 KM STORM RELATIVE HELICITY. WIND PROFILES WILL
   BECOME MORE FAVORABLE FOR SUPERCELLS WITH TIME AS THE LLJ SHIFTS EWD
   IN ASSOCIATION WITH AN UPPER JET ROTATING THROUGH BASE OF UPPER
   TROUGH. A WARM FRONT WAS ALSO LOCATED FROM SRN NC NWWD THROUGH NERN
   TN. SOUTH OF THIS BOUNDARY THE ATMOSPHERE IS ONLY MARGINALLY
   UNSTABLE...BUT IS MOISTENING WITH DEWPOINTS RISING INTO THE LOW 60S.
   THEREFORE...THE THREAT FOR SEVERE STORMS MAY INCREASE THROUGH THE
   MORNING.

   ..DIAL/HART.. 04/29/2014


   ATTN...WFO...GSP...MRX...FFC...

   LAT...LON   35378373 35908275 35648207 34558283 34088408 35378373 

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Page last modified: April 29, 2014
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