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Mesoscale Discussion 896
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MD 896 graphic
   
   MESOSCALE DISCUSSION 0896
   NWS STORM PREDICTION CENTER NORMAN OK
   0606 PM CDT SUN MAY 11 2008
   
   AREAS AFFECTED...SERN SC...FAR SERN GA
   
   CONCERNING...TORNADO WATCH 308...
   
   VALID 112306Z - 120030Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 308 CONTINUES.
   
   THREAT FOR ADDITIONAL SVR THUNDERSTORM DEVELOPMENT WILL CONTINUE FOR
   ANOTHER HR...BEFORE LOSS OF HEATING ENDS ANY ADDITIONAL SVR THREAT.
   A LOCAL EXTENSION FOR UP TO 1 HR MAY BE POSSIBLE IF REDEVELOPMENT
   OCCURS PRIOR TO WW 308 EXPIRATION TIME /00Z/. 
   
   LATEST CHS RADAR IMAGERY SHOWS A WELL DEFINED SEA-BREEZE/DRYLINE
   BOUNDARY INTERSECTION OVER SRN COLLETON COUNTY IN FAR SERN SC SWWD
   INTO JASPER COUNTY. THIS BOUNDARY INTERSECTION IS WHAT AIDED IN A
   SUPERCELL TO DEVELOP /PRODUCING A TORNADO RECENTLY INVOF OF CHS/.
   ALTHOUGH DAYTIME HEATING WAS WANING...SUFFICIENT CONVERGENCE ALONG
   THIS BOUNDARY INTERSECTION WAS SUPPORTING MDT/TCU PER VIS SATELLITE
   IMAGERY. SUFFICIENT CONVERGENCE MAY SUPPORT ANOTHER SVR TSTM TO FORM
   FROM THE FAR SERN SC COASTAL COUNTIES SWD INTO THE COASTAL COUNTIES
   OF FAR SERN GA IN THE NEXT HR. GIVEN THE STRENGTH OF LOW LEVEL SHEAR
   EAST OF THE SEA-BREEZE FRONT /0-1 KM SHEAR OF 36 KTS PER THE
   CHARLESTON VWP/ ANOTHER TORNADO WOULD BE POSSIBLE WITH ANY SUPERCELL
   WHICH COULD FORM OVER THIS AREA.
   
   ..CROSBIE.. 05/11/2008
   
   
   ATTN...WFO...CHS...JAX...
   
   32947997 32818096 32508142 32158169 31618194 31408161
   31408117 32348021 32707985 
   
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