MESOSCALE DISCUSSION 0666
   NWS STORM PREDICTION CENTER NORMAN OK
   0234 PM CDT THU APR 28 2011
   
   AREAS AFFECTED...FL PENINSULA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 281934Z - 282030Z
   
   ISOLATED DAMAGING WIND GUSTS OR LARGE HAIL WILL BE POSSIBLE DURING
   THE REMAINDER OF THE AFTERNOON OVER THE FL PENINSULA. HOWEVER...THE
   SVR WEATHER THREAT IS EXPECTED TO BE TOO MARGINAL TO SUPPORT A WW
   ISSUANCE.
   
   AFTERNOON SURFACE OBSERVATIONS INDICATE TEMPERATURES HAVE WARMED
   INTO THE LOW TO MID 90S OVER INTERIOR PORTIONS OF THE FL
   PENINSULA...WHICH APPEARS TO BE INVIGORATING THE SEA BREEZE PER VIS
   SATELLITE IMAGERY. AS THE BOUNDARY CONTINUES TO COLLAPSE
   INLAND...SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING
   OVER THE REGION DURING THE REMAINDER OF THE AFTERNOON. DUE TO THE
   STRONG SURFACE HEATING...AS WELL AS DEWPOINTS RESIDING IN THE
   MID/UPPER 60S TO LOW 70S...STRONG INSTABILITY /MLCAPE VALUES LOCALLY
   IN EXCESS OF 2000 J PER KG/ HAS DEVELOPED ACROSS THE AREA. THE
   UNSTABLE ENVIRONMENT COMBINED WITH STEEP LOW-LEVEL LAPSE RATES MAY
   SUPPORT A MARGINAL THREAT FOR ISOLATED SVR PULSE STORMS POSING A
   THREAT FOR DAMAGING WIND GUSTS AND LARGE HAIL.
   
   ..GARNER.. 04/28/2011
   
   
   ATTN...WFO...MFL...MLB...TBW...JAX...
   
   LAT...LON   27998275 29448247 29678165 28958087 26938006 25808016
               25288056 25988174 26998240 27998275