National Weather Service United States Department of Commerce
Mesoscale Discussion #0425 issued at 2217 UTC 15 March 2008
MESOSCALE DISCUSSION 0425
   NWS STORM PREDICTION CENTER NORMAN OK
   0517 PM CDT SAT MAR 15 2008
   
   AREAS AFFECTED...PARTS OF NRN GA AND NWRN SC WITHIN WW 119
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 119...
   
   VALID 152217Z - 152245Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 119
   CONTINUES.
   
   WW 119 MAY NEED TO BE LOCALLY EXTENDED BEYOND THE SCHEDULED 23Z
   EXPIRATION TIME.
   
   REGIONAL RADARS SHOWED A LINE OF TSTMS EXTENDING FROM FAR NERN GA
   INTO NORTH CENTRAL/NWRN GA...WITH THIS ACTIVITY LOCATED ALONG A
   PRIMARY SYNOPTIC COLD FRONT ATTENDANT TO UPPER SHORT WAVE TROUGH NOW
   MOVING EWD THROUGH THE UPPER TN VALLEY.  CURRENT TRACK ON THESE
   STORMS INDICATED ACTIVITY IN NWRN GA SHOULD MOVE INTO WW 120 BY
   23Z...BUT ACTIVITY NEWD ALONG THE FRONT SHOULD REMAIN IN WW 119 FOR
   AT LEAST 1 HOUR BEYOND 23Z ACROSS FAR NERN GA INTO NWRN SC.
   
   TSTMS ACROSS NWRN GA HAVE INCREASED IN INTENSITY...AND SHOULD
   CONTINUE TO DO SO AS THIS ACTIVITY TRACKS ESEWD INTO GREATER
   INSTABILITY.  EFFECTIVE BULK SHEAR VALUES ARE VERY STRONG FOR
   ORGANIZED STORMS WITH LOW LEVEL SHEAR REMAINING SUPPORTIVE FOR
   TORNADOES.
   
   ..PETERS.. 03/15/2008
   
   
   ATTN...WFO...CAE...GSP...FFC...BMX...