MESOSCALE DISCUSSION 1087
   NWS STORM PREDICTION CENTER NORMAN OK
   0508 PM CDT FRI JUN 04 2004
   
   AREAS AFFECTED...SERN TX/SWRN LA
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 042208Z - 050015Z
   
   ISOLATED DAMAGING WET MICROBURSTS WILL BE POSSIBLE WITH CONVECTION
   OVER SERN TX/SWRN LA FOR THE NEXT FEW HOURS AS IT MOVES SSEWD AROUND
   5-10 KTS. ADDITIONALLY...SLOW MOVEMENT AND CONTINUED FOCUS FOR
   REDEVELOPMENT UPSTREAM TO THE NORTH OF CLL WILL AID IN A THREAT FOR
   LOCALLY HEAVY RAINFALL RATES AS WELL.
   
   VERY UNSTABLE AIR EXISTS OVER SERN TX/SWRN LA WITH MLCAPES FROM
   3000-3500 J/KG. WEAKNESS IN MID LEVEL FLOW WILL LIMIT THE OVERALL
   SEVERE POTENTIAL TO ISOLATED WET MICROBURSTS WITH DAMAGING WINDS THE
   PRIMARY THREAT. SLOW SSE STORM MOTIONS AROUND 5 KTS...ALONG WITH THE
   POTENTIAL CONTINUED BACKBUILDING OF CONVECTION NWWD INTO ECENTRAL TX
    AIDED BY AN MCV OVER ERN OK INCREASING LOW LEVEL CONVERGENCE ALONG
   THE BOUNDARY. THE GREATEST THREAT FOR EXCESSIVE RAINFALL RATES WILL
   BE FROM LEON CO SEWD INTO THE NRN HOU METRO AND BEAUMONT AREAS OVER
   THE NEXT FEW HOURS. VERY HIGH PW/S WILL SUPPORT RAINFALL RATES FROM
   2-3 IN/HR ALONG THIS CORRIDOR.
   
   ..CROSBIE.. 06/04/2004
   
   
   ATTN...WFO...LCH...SHV...HGX...FWD...
   
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