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Mesoscale Discussion #0437 issued at 2211 UTC 10 April 2009
MESOSCALE DISCUSSION 0437
NWS STORM PREDICTION CENTER NORMAN OK
0511 PM CDT FRI APR 10 2009
   
AREAS AFFECTED...PORTIONS OF WRN/CNTRL SC...NERN/CNTRL GA
   
CONCERNING...TORNADO WATCH 134...
   
VALID 102211Z - 102315Z
   
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 134 CONTINUES.
   
A NEW TORNADO WATCH WILL LIKELY BE ISSUED PRIOR TO 23Z DOWNSTREAM OF
WW 134 ACROSS PORTIONS OF WRN/CNTRL SC AND NERN/CNTRL GA.
  
DISCRETE SUPERCELLS HAVE RECENTLY DEVELOPED OUT AHEAD OF PRIMARY
AXIS OF SUPERCELL CLUSTERS STRETCHING FROM NRN/CNTRL AL INTO NWRN
GA. THIS ACTIVITY WILL PROGRESS EWD DOWNSTREAM OF WW 134 INTO EARLY
EVENING. ALTHOUGH SURFACE DEW POINTS ARE MODEST /UPPER 40S TO MIDDLE
50S/ ACROSS E-CNTRL GA INTO CNTRL SC...STRENGTHENING SWLY LOW-LEVEL
FLOW WILL RESULT IN MOISTENING WITH DEW POINTS LIKELY RISING INTO
THE MIDDLE 50S TO LOWER 60S. THIS WILL LEAD TO INCREASING
DESTABILIZATION AND EXPECTED MAINTENENCE OF SUPERCELLS AND
ASSOCIATED SEVERE WEATHER THREATS GIVEN FAVORABLY LARGE LOWER-LEVEL
HODOGRAPHS. ENHANCED TORNADIC POTENTIAL SHOULD EXIST WITH SUSTAINED
DISCRETE SUPERCELLS ALONG WITH ANY TSTMS EVOLVING INVOF RESIDUAL
OUTFLOW BOUNDARY DRAPED FROM NEAR AND TO SOP AS OF 22Z.
   
..GRAMS.. 04/10/2009
   
   
ATTN...WFO...CAE...GSP...FFC...
   
LAT...LON   35068290 35318185 35288114 35078066 34278119 33078216
            32638266 32468332 32398390 32678439 33518396 34528337
            35068290 
               


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