MESOSCALE DISCUSSION 2458
   NWS STORM PREDICTION CENTER NORMAN OK
   0140 AM CDT SUN OCT 26 2003
   
   AREAS AFFECTED...SERN LA/SRN MS
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 260640Z - 260815Z
   
   LINE OF STRONG CONVECTION CURRENTLY EXTENDS FROM CNTRL MS SWD TO FAR
   ERN LA. CELL MERGERS SHOULD CONTINUE ON THE SRN END OF THE LINE AND
   A POTENTIAL FOR ISOLATED TORNADOES WILL EXIST OVER THE NEXT FEW HOUR
   S. THE THREAT APPEARS TOO MINIMAL FOR A WW ATTM.
   
   SFC ANALYSIS CURRENTLY SHOWS A MOIST AXIS EXTENDING NWD THROUGH SRN
   AND CNTRL MS WHERE SFC DEWPOINTS ARE IN THE MID TO UPPER 60S F. A
   CONVECTIVE LINE IS CURRENTLY ALONG THE MOIST AXIS WHERE MLCAPE
   VALUES ARE BETWEEN 500 AND 1000 J/KG. OBJECTIVE ANALYSIS SHOWS 0-6
   KM SHEAR VALUES AROUND 30 KT AND THIS SHOULD BE ENOUGH FOR ISOLATED
   SEVERE STORMS. BACKED SFC WINDS AHEAD OF THE STORMS INVOF OLD WARM
   FRONT ACROSS SERN MS MAY RESULT IN AN BRIEF TORNADO THREAT WITH THE
   STORMS/STORM MERGERS.
   
   ..BROYLES.. 10/26/2003
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...
   
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