MESOSCALE DISCUSSION 0246
   NWS STORM PREDICTION CENTER NORMAN OK
   0522 PM CST THU MAR 01 2007
   
   AREAS AFFECTED...SERN MS / AL / GA
   
   CONCERNING...TORNADO WATCH 44...46...
   
   VALID 012322Z - 020045Z
   
   POTENTIAL FOR SIGNIFICANT TORNADOES IS EXPECTED TO CONTINUE ACROSS
   THE REGION THIS EVENING...NAMELY ACROSS CNTRL/SRN PORTIONS OF AL/GA
   AND THE FL PNHDL.  CONTINUE WW/S.
   
   23Z MESOANALYSIS INDICATED PACIFIC COLD FRONT /DELINEATING WRN EDGE
   OF SYNOPTIC SYSTEM WARM SECTOR/ FROM MSL SWWD TO PIB. 
   EFFECTIVE...COMPOSITE OUTFLOW BOUNDARY HAS BECOME ESTABLISHED TODAY
   IN MORE OF AN W-E FASHION FROM INTERSECTION WITH PACIFIC FRONT NE OF
   MEI ESEWD THROUGH MGM TO NEAR CSG TO AYS.  AIR MASS ALONG AND S OF
   THIS BOUNDARY REMAINS SLIGHTLY TO MODERATELY UNSTABLE /MLCAPES OF
   500-1000 J PER KG/ OWING TO DEWPOINTS IN THE MID/UPPER 60S AND
   TEMPERATURES IN THE LOW/MID 70S.  TO THE N OF THIS BAROCLINIC
   ZONE...PERSISTENT AND MORE WIDESPREAD CONVECTION HAS LIMITED HEATING
   AND RESULTANT DESTABILIZATION WITH TEMPERATURES COMMONLY IN THE 
   60S.  
   
   BROAD ZONE OF LOW-LEVEL WAA IN ADVANCE OF PACIFIC FRONT AND
   ASSOCIATED UPPER TROUGH WILL LIKELY MAINTAIN CLUSTERS OF TSTMS
   WITHIN THIS ZONE OF STRONGER INSTABILITY TO THE S OF COMPOSITE
   OUTFLOW BOUNDARY.  REGIONAL VWPS INDICATE VERTICAL SHEAR QUITE
   FAVORABLE FOR SUPERCELLS CAPABLE OF TORNADOES WITH 0-1 KM SRH OF
   300-400 M2/S2 AND EFFECTIVE BULK SHEARS OF 55-70 KT.
   
   TO THE N OF OUTFLOW BOUNDARY ACROSS NRN PORTIONS OF
   AL/GA...SUPERCELL/TORNADO THREAT STILL EXISTS...HOWEVER THIS THREAT
   APPEARS TO BE LESS THAN THAT WITHIN MORE UNSTABLE WARM SECTOR TO THE
   S.
   
   ..MEAD.. 03/01/2007
   
   
   ATTN...WFO...CHS...CAE...GSP...TBW...JAX...MRX...FFC...TAE...BMX...HUN...MOB...MEG...JAN...LIX...
   
   29438828 29708932 30828964 32178936 34478823 35188621
   35138289 34798195 33278142 32598159 31128262 29178281
   28918388