MESOSCALE DISCUSSION 0944
   NWS STORM PREDICTION CENTER NORMAN OK
   1051 AM CDT THU JUN 04 2009
   
   AREAS AFFECTED...PARTS OF NRN FL/THE FL PANHANDLE INTO S CNTRL GA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 041551Z - 041715Z
   
   THE NEED FOR A WW IS NOT CURRENTLY ANTICIPATED...BUT THE SEVERE
   THREAT MAY NOT BE COMPLETELY NEGLIGIBLE THROUGH THE MID/LATE
   AFTERNOON HOURS.
   
   A LOWER/MID TROPOSPHERIC CYCLONIC VORTICITY CENTER OVER SOUTHEASTERN
   ALABAMA...WITHIN A BROADER SCALE WEAK UPPER TROUGH ...IS PROGGED TO
   CONTINUE SLOWLY LIFTING NORTHEASTWARD TOWARD THE COLUMBUS GA AREA
   BETWEEN NOW AND 18-21Z.  FORCING WITH THIS FEATURE PROBABLY IS
   ALREADY PROVIDING SUPPORT FOR ONGOING STORMS AROUND THE TALLAHASSEE
   AREA OF NORTHERN FLORIDA...WITH ADDITIONAL SCATTERED STORM
   DEVELOPMENT LIKELY ACROSS NORTHERN FLORIDA THROUGH MUCH OF SOUTHERN
   GEORGIA...AS SURFACE HEATING CONTRIBUTES TO BOUNDARY LAYER
   DESTABILIZATION.  BOTH MID-LEVEL LAPSE RATES AND DEEP LAYER SHEAR
   ARE QUITE WEAK ACROSS THIS REGION...AND THESE ARE DEFINITE LIMITING
   FACTORS TO SEVERE POTENTIAL TODAY.  HOWEVER... OBSERVATIONAL AND
   FORECAST DATA INDICATE A 20-30 KT SOUTHERLY 850 MB JET ACCOMPANYING
   THE UPPER IMPULSE...WHICH...IN THE PRESENCE OF A HIGH MOISTURE
   CONTENT BOUNDARY LAYER WITH CAPE OF 1000-2000 J/KG ...MAY CONTRIBUTE
   TO LARGE ENOUGH LOW-LEVEL HODOGRAPHS FOR VIGOROUS UPDRAFTS WITH
   SUSTAINED ROTATION.  AN ISOLATED... GENERALLY BRIEF...TORNADO IS NOT
   OUT OF THE QUESTION...WITH LOCALIZED DOWNBURSTS ALSO POSSIBLE.
   
   ..KERR.. 06/04/2009
   
   
   ATTN...WFO...CHS...JAX...FFC...TAE...
   
   LAT...LON   32218487 32838409 32828313 32748243 32458178 31388207
               30648259 30118308 29978353 30178404 30108464 30228494
               30888499 31328510 31758508 32218487