MESOSCALE DISCUSSION 0350
   NWS STORM PREDICTION CENTER NORMAN OK
   0315 PM CDT TUE MAR 31 2009
   
   AREAS AFFECTED...PARTS OF THE FL PENINSULA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 98...
   
   VALID 312015Z - 312145Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 98
   CONTINUES.
   
   SEVERE THREAT WILL LIKELY PERSIST ALONG AND S OF CONVECTIVE CLUSTER
   ACROSS PARTS OF EXTREME SRN AL/FL PENINSULA/SWRN GA THROUGH 00Z.
   
   LATEST SURFACE ANALYSIS SHOWS A WAVY RETREATING MARINE WARM FRONT
   ACROSS PARTS OF THE FL PENINSULA EXTENDING EWD INTO NRN FL. 
   IMMEDIATELY ADJACENT AND S OF THE BOUNDARY...THE AIRMASS HAS BECOME
   WEAKLY UNSTABLE /300-900 J/KG MLCAPE/ AMIDST VERY MOIST LOW LEVEL
   PROFILES /13-14 G/KG MIXING RATIO/.  STRONG CLOUD BEARING SHEAR IN
   EXCESS OF 50 KTS AND ENHANCED LOW LEVEL SHEAR ALONG AND N OF
   BOUNDARY--WHERE 1 MB /HR PRESSURE FALLS ARE MAXIMIZED--MAY POSE AN
   ENHANCED SEVERE WEATHER THREAT IN THE FORM OF DMGG WINDS AND PERHAPS
   AN ISOLD TORNADO AS STORMS INTERACT WITH THE BOUNDARY.  FURTHER
   N...WARM/MOIST FLUX N OF BOUNDARY IS CONTRIBUTING TO SUBSTANTIAL
   RAINFALL RATES ACROSS SRN AL INTO SWRN GA WITHIN AXIS OF 50 KT SWLY
   LLJ PER EVX VWP.
   
   ..SMITH.. 03/31/2009
   
   
   ATTN...WFO...TAE...BMX...MOB...
   
   LAT...LON   29268519 29898603 30298709 30778793 31218729 31518585
               31788501 31788359 31458317 30978328 29908416 29268519