MESOSCALE DISCUSSION 0210
   NWS STORM PREDICTION CENTER NORMAN OK
   0128 AM CST WED MAR 09 2011
   
   AREAS AFFECTED...LA...MS...FAR SRN AR...SW AL
   
   CONCERNING...TORNADO WATCH 44...
   
   VALID 090728Z - 090900Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 44 CONTINUES.
   
   THE SEVERE THREAT ACROSS WW 44 WILL CONTINUE LATE TONIGHT AS CELLS
   MOVE EWD INTO SCNTRL MS AND SRN LA. A FEW TORNADOES MAY OCCUR WITH
   DISCRETE CELLS THAT INITIATE AND PERSIST AHEAD OF A DEVELOPING
   SQUALL-LINE. THE WIND DAMAGE THREAT WILL LIKELY INCREASE AS STORMS
   CONGEAL INTO A LINEAR MCS. ANOTHER TORNADO WATCH WILL BE NEEDED
   BEFORE 09Z TO REPLACE THE CURRENT WW.
   
   LATEST SFC ANALYSIS SHOWS A SFC LOW OVER THE ARKLATEX WITH A WARM
   FRONT EXTENDING EWD ACROSS NRN LA INTO SCNTRL MS. SEVERAL BOWING
   LINE-SEGMENTS ARE ONGOING NEAR AND TO THE SOUTH OF THE BOUNDARY IN
   SW MS AND CNTRL LA ON THE NRN EDGE OF THE WARM SECTOR. SFC DEWPOINTS
   IN THE WARM SECTOR ARE IN THE MID TO UPPER 60S F WITH MLCAPE VALUES
   ESTIMATED IN THE 500 TO 1500 J/KG RANGE. AS THE STORMS MOVE EWD
   ALONG THE BOUNDARY...VORTICITY WILL BE ENHANCED WITH STORMS THAT
   INTERACT WITH THE WARM FRONT WHICH COMBINED WITH 0-3 KM STORM
   RELATIVE HELICITY OF 400 M2/S2 ESTIMATED BY WSR-88D VWPS SHOULD BE
   FAVORABLE FOR ROTATING STORMS AND POSSIBLY A FEW TORNADOES. IN
   ADDITION...WSR-88D VWPS ESTIMATE WINDS JUST ABOVE THE SFC IN THE 40
   TO 50 KT RANGE SUGGESTING A WIND DAMAGE THREAT WILL EXIST ESPECIALLY
   WITH THE FASTER MOVING BOWING LINE-SEGMENTS.
   
   ..BROYLES.. 03/09/2011
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...LZK...LCH...SHV...
   
   LAT...LON   30059119 30049148 30029156 30109169 30069186 30059206
               30099215 30069234 30019241 30069257 30019284 30079369
               30519373 31079356 31329365 31589381 31929395 32119408
               32249398 32349380 32209365 32249349 32459340 32459321
               32609318 32609291 32789281 32889267 33079268 33079298
               33429300 33399267 33209217 33409199 33379148 33039143
               33019094 33179087 33119066 32989064 32959043 33029042
               32868999 32888980 32628975 32578893 32278890 32238846
               32328845 32298799 32028809 31848819 31668806 31458791
               30968796 30348811 30418837 29898836 29898846 29388878
               29928935 29748953 29638949 29888993 29859008 29659007
               29439000 29219006 29339007 29539012 29639021 29719034
               29819041 29839061 29869080 29749095 29679108 29779124
               29839137 30059119