MESOSCALE DISCUSSION 0354
   NWS STORM PREDICTION CENTER NORMAN OK
   0659 PM CDT TUE MAR 31 2009
   
   AREAS AFFECTED...NRN FL AND SCNTRL/SERN GA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 98...99...
   
   VALID 312359Z - 010130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   98...99...CONTINUES.
   
   MCV CONTINUES TO TRANSLATE THROUGH SCNTRL GA JUST SW OF DOUGLAS AT
   2345Z.  TLH 0.5 BASE VELOCITY DATA SHOWS A SIGNIFICANT COLD POOL
   SWINGING SEWD INTO VALDOSTA AND TALLAHASSEE AREAS WITH RAPID UPSCALE
   GROWTH OF BOW ECHOES /260@40KTS/ ALONG ITS LEADING EDGE.
   
   UPR 60S SFC DEW POINTS/GULF BOUNDARY LAYER HAS MOVED INLAND AHEAD OF
   THE ACTIVITY GENERALLY TO THE WEST OF I-75 AND SOUTH OF THE GA
   BORDER.  BUT...SOME RECOVERY IS POSSIBLE INTO AREAS FROM GAINESVILLE
   TO JACKSONVILLE AHEAD OF THE MCS.  THUS...STORMS MAY BEGIN TO
   DEVELOP/PROPAGATE ESE ALONG/N OF I-10 WITH DMGG WINDS
   LIKELY...INCLUDING LAKE CITY FL AND THE OKEFENOKEE SWAMP REGION.  IF
   THE STORMS CAN MANAGE TO MAINTAIN CHARACTER...JACKSONVILLE METRO MAY
   EXPERIENCE DMGG WINDS BY 02Z.
   
   TSTMS HAVE ALSO BEEN DEVELOPING ALONG THE RETURNING GULF AIR MASS IN
   NRN FL/SRN GA FROM GAINESVILLE NWD INTO SCNTRL GA.  HERE...LLVL
   SHEAR IS SOMEWHAT SUPPORTIVE OF A BRIEF TORNADO BEFORE THE COLD POOL
   SWEEPS THROUGH THE REGION.
   
   SMALL PART OF SEVERE THUNDERSTORM WATCH 98 WAS LOCALLY EXTENDED BY
   WFO TLH THROUGH 02Z IN THE ERN FL PNHDL TO ACCOUNT FOR THE BOWS
   MOVING ACROSS THE REGION.
   
   ..RACY.. 03/31/2009
   
   
   ATTN...WFO...JAX...TAE...
   
   LAT...LON   31708299 31678218 31138124 30378124 30368208 29968295
               29698378 30138463 31708299