MESOSCALE DISCUSSION 0618
   NWS STORM PREDICTION CENTER NORMAN OK
   0209 AM CDT FRI MAY 10 2013
   
   AREAS AFFECTED...SERN LA
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 100709Z - 100815Z
   
   PROBABILITY OF WATCH ISSUANCE...60 PERCENT
   
   SUMMARY...THREAT FOR ISOLATED DAMAGING WIND...HAIL AND PERHAPS A
   TORNADO OR TWO MAY SPREAD EWD INTO A PORTION OF SERN LA AND SRN MS
   EARLY THIS MORNING. TRENDS ARE BEING MONITORED FOR POSSIBLE WW
   ISSUANCE.
   
   DISCUSSION...EARLY THIS MORNING AN ORGANIZED MCS WITH AN EMBEDDED
   MESO VORTEX ON THE NRN END EXTENDS FROM ECNTRL LA SWWD INTO EXTREME
   SWRN LA MOVING EAST AT AROUND 20-25 KT...BUT WITH SOME BACKBUILDING
   ON THE SWRN FLANK. A FEW EMBEDDED MESO-VORTICES AND BOWING SEGMENTS
   CONTINUE TO BE OBSERVED WITH THIS FEATURE. THE BOUNDARY LAYER
   DOWNSTREAM REMAINS QUITE MOIST WITH UPPER 60S DEWPOINTS OVER SERN LA
   AND IS ONLY WEAKLY CAPPED. AS THE LLJ SHIFTS ENEWD THROUGH SRN MS
   DURING THE MORNING...CONVERGENCE WILL REMAIN SUFFICIENT TO SUPPORT
   FORWARD PROPAGATION NEXT FEW HOURS.
   
   ..DIAL/MEAD.. 05/10/2013
   
   
   ATTN...WFO...JAN...LIX...LCH...
   
   LAT...LON   30609160 31069168 31909092 31609009 30578987 29829015
               29769104 30189136 30609160