MESOSCALE DISCUSSION 0267
   NWS STORM PREDICTION CENTER NORMAN OK
   1138 PM CDT WED MAR 25 2009
   
   AREAS AFFECTED...SE LA...SRN MS...WCNTRL AL
   
   CONCERNING...TORNADO WATCH 66...
   
   VALID 260438Z - 260615Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 66 CONTINUES.
   
   WIND DAMAGE WILL LIKELY ACCOMPANY A SQUALL-LINE MOVING SEWD ACROSS
   ERN LA AND SRN MS OVER THE NEXT 2 TO 4 HOURS. HAIL AND A FEW
   TORNADOES WILL BE POSSIBLE WITH ROTATING CELLS IN OR AHEAD OF THE
   LINE. THE LINE SHOULD REACH WRN AL AFTER 08Z.
   
   LATEST SFC ANALYSIS SHOWS A SLOW MOVING FRONTAL BOUNDARY ACROSS
   CNTRL MS WITH A SQUALL-LINE/COLD FRONT EXTENDING SWWD ACROSS SW MS
   INTO SE LA. SEVERAL BOWING-SEGMENTS ARE LOCATED ALONG THE
   SQUALL-LINE MOVING AT ABOUT 40 KT. THIS COMBINED WITH INCREASING
   LOW-LEVEL FLOW WILL SUSTAIN A WIND DAMAGE THREAT LATE TONIGHT. IN
   ADDITION...REGIONAL WSR-88D VWPS SHOW FAVORABLE LOW-LEVEL SHEAR /0-1
   KM SHEAR OF 30 TO 35 KT/ FOR A FEW TORNADOES. AN ISOLATED TORNADO
   THREAT WILL LIKELY EXIST WITH MORE INTENSE BOWING LINE SEGMENTS AND
   WITH ISOLATED SUPERCELLS THAT CAN DEVELOP AHEAD OF THE LINE. AN
   ENHANCED TORNADO THREAT COULD EXIST WHERE THE LINE INTERSECTS THE
   FRONTAL BOUNDARY IN CNTRL MS AS IS OCCURRING IN CLAIBORNE COUNTY MS.
   
   ..BROYLES.. 03/26/2009
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...LCH...
   
   LAT...LON   29569150 29839246 30279233 31139143 31799087 32249011
               32548866 32618848 32798774 32328707 31438715 30488948
               29769036 29569150