MESOSCALE DISCUSSION 1485
   NWS STORM PREDICTION CENTER NORMAN OK
   0245 PM CDT TUE JUL 17 2012
   
   AREAS AFFECTED...FL...GA...AL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 488...
   
   VALID 171945Z - 172115Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 488
   CONTINUES.
   
   SUMMARY...SCATTERED TO NUMEROUS STRONG TO SEVERE TSTMS DRIFTING
   SOUTH ACROSS THE WATCH AREA WITH A CONTINUING THREAT FOR OCCASIONAL
   DAMAGING WINDS.
   
   DISCUSSION...NUMEROUS PULSE AND MULTICELL STORM CLUSTERS HAVE
   DEVELOPED ACROSS THE WATCH AREA IN THE PAST FEW HOURS. THIS
   CONVECTION WAS BEING DRIVEN BY ABUNDANT INSTABILITY AND SUPPORTIVE
   BACKGROUND ASCENT ASSOCIATED WITH A WWD MOVING UPPER DISTURBANCE.
   ACTIVITY IS BEING STEERED BY DEEP-LAYER MEAN WIND OF 10-15 KT AND
   STORMS SHOULD CONTINUE TO DRIFT GENERALLY SOUTH-SOUTHWEST THROUGH
   THE REST OF THE AFTERNOON.
   
   RECENT STORM AND OUTFLOW MERGERS AROUND THE TLH AREA HAVE POSSIBLY
   PRODUCED LOCALIZED STRONG TO SEVERE WIND GUSTS/PERHAPS SOME
   HAIL...AND VERY HEAVY RAIN. GIVEN WEAK SHEAR ENVIRONMENT...SOME
   CELLS SHOW A BRIEF INCREASE IN INTENSITY WHILE OTHERS UNDERGO
   DESTRUCTIVE INTERFERENCE AND COLLAPSE. NUMEROUS OUTFLOW BOUNDARIES
   APPEAR TO BE CONVERGING ON TLH AND...IN ADDITION TO DOWNBURST WIND
   POTENTIAL WITH THIS CONVECTION...TORRENTIAL RAINS APPEAR TO BE VERY
   LIKELY ACROSS THE AREA IN THE NEXT HOUR OR SO. OVER THE NEXT FEW
   HOURS...WIDESPREAD AIRMASS OVERTURNING AND LACK OF GREATER FORCING
   AND SHEAR SHOULD BEGIN TO RESULT IN GENERAL DEMISE TO THE SEVERE
   WIND AND HAIL POTENTIAL ACROSS SRN PORTIONS OF THE WATCH.
   HOWEVER...CONVECTIVE OVERTURNING HAS BEEN LESS ACROSS NRN AREAS OF
   THE WATCH AND MORE RECENT DEVELOPMENT IN CNTRL GA AND ERN AL MAY
   DRIFT INTO THIS PORTION OF THE WATCH IN THE NEXT 1-2 HOURS.
   
   ..CARBIN.. 07/17/2012
   
   
   ATTN...WFO...CHS...JAX...FFC...TAE...BMX...MOB...
   
   LAT...LON   32288447 31718514 31618613 30998618 30948638 30098650
               29688573 29718322 29698298 30298276 30588271 30548223
               30758215 30798238 31048240 31028216 31898217 32338225
               32158289 32468314 32398346 32178421 32288447