MESOSCALE DISCUSSION 0270
   NWS STORM PREDICTION CENTER NORMAN OK
   0601 AM CDT THU MAR 26 2009
   
   AREAS AFFECTED...SWRN THROUGH E CNTRL AL AND THE WRN FL PANHANDLE
   
   CONCERNING...TORNADO WATCH 67...
   
   VALID 261101Z - 261230Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 67 CONTINUES.
   
   STORMS HAVE SHOWN SOME DECREASE IN OVERALL INTENSITY DURING THE PAST
   HOUR. HOWEVER...THREAT FOR ISOLATED DAMAGING WIND AND PERHAPS A
   TORNADO OR TWO MAY EXTEND A ROW OF COUNTIES OR TWO EAST OF CURRENT
   WW. WW 67 MIGHT NEED TO BE LOCALLY EXTENDED FARTHER EAST TO INCLUDE
   THE REMAINDER OF THE COUNTIES IN ERN AL.
   
   SQUALL LINE WITH EMBEDDED SUPERCELL AND LEWP STRUCTURES FROM N CNTRL
   THROUGH SW AL CONTINUES EAST AT AROUND 35-40 KT. STORMS INLAND FROM
   THE COASTAL AREA ARE CROSSING AXIS OF HIGHER THETA-E AIR AND WILL BE
   MOVING INTO AN INCREASINGLY MARGINAL THERMODYNAMIC ENVIRONMENT. THIS
   SUGGEST A SLOW WEAKENING TREND IS PROBABLE WITHIN THE NEXT COUPLE
   HOURS WITH STORMS MOVING THROUGH CNTRL AL. IN THE MEANTIME...GIVEN
   THE FAVORABLY SHEARED ENVIRONMENT...SOME STORMS WITHIN THE LINE WILL
   REMAIN CAPABLE OF PRODUCING DAMAGING WIND AND MAYBE AN ISOLATED
   TORNADO AS THEY APPROACH THE ERN EDGE OF WW 67.
   
   THOUGH THE STRONGER BOUNDARY LAYER FLOW ASSOCIATED WITH THE LOW
   LEVEL JET WILL GRADUALLY SHIFT NE AWAY FROM THE COAST...INFLUX OF
   HIGHER THETA-E AIR AND SUFFICIENT VERTICAL SHEAR WILL MAINTAIN A
   SEVERE THREAT IN THIS REGION NEXT FEW HOURS.
   
   ..DIAL.. 03/26/2009
   
   
   ATTN...WFO...TAE...BMX...MOB...
   
   LAT...LON   33608544 32568525 31758554 30598679 30298819 32188689
               33628612 33608544