MESOSCALE DISCUSSION 0438
   NWS STORM PREDICTION CENTER NORMAN OK
   0634 PM CDT FRI APR 10 2009
   
   AREAS AFFECTED...CNTRL AL...NRN/CNTRL GA...UPSTATE SC
   
   CONCERNING...TORNADO WATCH 134...135...
   
   VALID 102334Z - 110030Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 134...135...CONTINUES.
   
   SEVERAL DISCRETE SUPERCELLS ALONG WITH SHORT-LINE SEGMENTS SHOULD
   PROGRESS E/SEWD ACROSS SERN PORTION OF WW 134 INTO WW 135. LOCAL
   AREAL EXTENSION MAY BE NEEDED ALONG THE SRN PERIPHERY OF WW 134 IN
   AL. THREATS OF LARGE HAIL AND TORNADOES /A FEW OF WHICH COULD BE
   SIGNIFICANT/...AND DAMAGING WINDS WILL CONTINUE.
   
   AS OF 2330Z...NUMEROUS DISCRETE SUPERCELLS HAVE EVOLVED INTO
   CNTRL/E-CNTRL AL AND NWRN GA...WITH A SHORT LINE SEGMENT CONSISTING
   OF EMBEDDED SUPERCELLS ACROSS N-CNTRL GA. DESPITE THE ONSET OF
   STABILIZATION WITH LOSS OF DAYTIME HEATING...A SWLY INFLUX OF UPPER
   50S TO LOWER 60S SURFACE DEW POINTS SHOULD HELP OFFSET THIS TENDENCY
   TO SOME EXTENT. MEANWHILE...AREA VWPS INDICATE A GRADUAL
   STRENGTHENING TREND IN LOWER-LEVEL FLOW WHICH IS ENLARGING ALREADY
   VERY FAVORABLE HODOGRAPHS FOR UPDRAFT ROTATION. AS
   SUCH...SIGNIFICANT SEVERE POTENTIAL IS EXPECTED TO CONTINUE THROUGH
   ABOUT 02-03Z.
   
   ..GRAMS.. 04/10/2009
   
   
   ATTN...WFO...CAE...GSP...FFC...BMX...
   
   LAT...LON   32288612 32378751 32738739 33158667 33908593 34268490
               34368377 34888281 35148226 35138134 34928092 34498107
               33338211 32798288 32428409 32278476 32288612