MESOSCALE DISCUSSION 0366
   NWS STORM PREDICTION CENTER NORMAN OK
   0730 AM CDT TUE APR 05 2011
   
   AREAS AFFECTED...PORTIONS FL PENINSULA.
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 105...
   
   VALID 051230Z - 051430Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 105
   CONTINUES.
   
   WW MAY BE CLEARED BEHIND PRIMARY/SW-NE ALIGNED/QUASI-LINEAR
   MCS...WHICH IS MOVING EWD 30-40 KT ACROSS NERN THROUGH W-CENTRAL FL
   AS OF 1215Z.  DOMINANT SVR THREAT REMAINS DAMAGING GUSTS...THOUGH
   BRIEF TORNADO CANNOT BE RULED OUT FROM EMBEDDED MESOCIRCULATIONS.
   
   AS MID--UPPER TROUGH BEGINS TO PIVOT NEWD AND EJECT ACROSS CENTRAL
   APPALACHIANS REGION...RELATED DEPARTURE OF STRONGEST LOW-LEVEL
   ISALLOBARIC FORCING ACROSS MID-ATLANTIC SHOULD RESULT IN VEERING OF
   LOW-LEVEL FLOW AHEAD OF MCS.  THIS IN TURN...SHOULD REDUCE LOW-LEVEL
   CONVERGENCE AND SHEAR.  HOWEVER...SFC DIABATIC HEATING WILL REDUCE
   ALREADY WEAK MLCINH...WHILE BOOSTING MLCAPE INTO 2000-3000 J/KG
   RANGE.  THIS IS BASED ON MODIFIED MFL/TBW RAOBS...WHICH SHOW AREAS
   OF VERY STEEP MIDLEVEL LAPSE RATES REMAINING FROM ELEVATED
   MIXED-LAYER AIR ADVECTED OFF MEX PLATEAU AND ACROSS GULF.  STG
   BUOYANCY SHOULD OFFSET REDUCTION IN KINEMATIC SUPPORT ENOUGH TO
   MAINTAIN ORGANIZED SVR WIND THREAT INTO PORTIONS SRN FL THROUGH
   REMAINDER MORNING.  OCCASIONAL LARGE HAIL ALSO MIGHT OCCUR...GIVEN
   DEPTH OF BUOYANCY AND POTENTIAL FOR AT LEAST TRANSIENT SUPERCELLULAR
   MORPHOLOGIES. ACCORDINGLY...AREAS S OF WW 105 MAY BE PLACED IN
   ADDITIONAL WW BEFORE THIS SYSTEM CLEARS REGION.
   
   ..EDWARDS.. 04/05/2011
   
   
   ATTN...WFO...MFL...MLB...TBW...JAX...
   
   LAT...LON   29418108 28958083 28688064 28498046 28498059 28188059
               27678032 26928003 26338005 25678016 25328033 25198052
               25148079 25168086 25148109 25198118 25328112 25388111
               25728134 25908165 25798165 26328186 26468198 26378205
               26498222 26858230 27518274 27728277 27838279 29418108