MESOSCALE DISCUSSION 0269
   NWS STORM PREDICTION CENTER NORMAN OK
   0340 AM CDT THU MAR 26 2009
   
   AREAS AFFECTED...SE LA AN SE MS THROUGH SW AND CNTRL AL
   
   CONCERNING...TORNADO WATCH 67...
   
   VALID 260840Z - 261015Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 67 CONTINUES.
   
   THREAT FOR ISOLATED TORNADOES AND DAMAGING WIND WILL PERSIST NEXT
   FEW HOURS AS LINE OF STORMS MOVES INTO AL.
   
   A SQUALL LINE WITH EMBEDDED SUPERCELL AND BOWING SEGMENTS EXTENDS
   FROM NW AL SSWWD THROUGH SERN MS AND SE LA MOVING EAST AT 35-40 KT. 
   STRONG STORM RELATIVE INFLOW FROM THE MOIST WARM SECTOR WILL HELP
   MAINTAIN THE FORWARD PROPAGATING MCS NEXT SEVERAL HOURS. AN AXIS OF
   LOW-MID 60S DEWPOINTS DOWNSTREAM FROM THE LINE EXTENDING NWD THROUGH
   CNTRL AL IS SUPPORTING MARGINAL BUT SUFFICIENT INSTABILITY FOR THE
   ACTIVITY TO DEVELOP EWD. POTENTIAL ALSO EXISTS FOR ISOLATED MORE
   DISCRETE CONVECTION TO INTENSIFY AND EVOLVE INTO SUPERCELLS AHEAD OF
   THE LINE. STRONG SHEAR AND LARGE 0-1 KM HODOGRAPHS ACCOMPANYING THE
   EJECTING SHORTWAVE TROUGH AND ITS ATTENDANT 50+ KT SSWLY LOW LEVEL
   JET WILL CONTINUE TO SUPPORT ORGANIZED STRUCTURES...ALONG WITH A
   THREAT FOR ISOLATED TORNADOES AND DAMAGING WIND.
   
   ..DIAL.. 03/26/2009
   
   
   ATTN...WFO...BMX...MOB...JAN...LIX...
   
   LAT...LON   32548621 31078704 30108822 29428972 29619019 30058995
               31028917 32028851 33708751 33668617 32548621