MESOSCALE DISCUSSION 0619
   NWS STORM PREDICTION CENTER NORMAN OK
   0432 AM CDT FRI MAY 10 2013
   
   AREAS AFFECTED...SERN LA AND EXTREME SRN MS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 154...
   
   VALID 100932Z - 101100Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 154
   CONTINUES.
   
   SUMMARY...THREAT FOR MAINLY ISOLATED DAMAGING WIND GUSTS WILL
   PERSIST NEXT FEW HOURS ACROSS EXTREME SRN MS INTO SERN LA.
   
   DISCUSSION...SQUALL LINE EXTENDS FROM SRN MS SWWD THROUGH SCNTRL LA
   MOVING EAST AT 20 KT. THE BOUNDARY LAYER OVER SERN LA IS VERY MOIST
   WITH UPPER 60S-70 DEWPOINTS...BUT THE ATMOSPHERE IS ONLY MARGINALLY
   UNSTABLE AND OVERALL TREND HAS BEEN FOR ACTIVITY TO WEAKEN BELOW
   SEVERE LEVELS. FORWARD PROPAGATION INTO THE MOIST ENVIRONMENT WILL
   CONTINUE NEXT FEW HOURS. LLJ AXIS WILL DEVELOP NEWD TOWARD SRN/CNTRL
   MS AND BECOME INCREASINGLY REMOVED FROM THE RICHER LOW LEVEL
   MOISTURE. NEVERTHELESS...40 KT EFFECTIVE BULK SHEAR WILL MAINTAIN
   POTENTIAL FOR EMBEDDED ORGANIZED STRUCTURES INCLUDING MESO-VORTICES
   AND BOWING SEGMENTS WITH AN ATTENDANT THREAT FOR STRONG TO DAMAGING
   WIND GUSTS.
   
   ..DIAL.. 05/10/2013
   
   
   ATTN...WFO...JAN...LIX...LCH...
   
   LAT...LON   29659188 30009121 30589097 30939073 31119026 31348975
               31468945 30268999 29519002 29219037 29409107 29479125
               29659188