MESOSCALE DISCUSSION 0127
   NWS STORM PREDICTION CENTER NORMAN OK
   0239 PM CST THU FEB 24 2011
   
   AREAS AFFECTED...SERN OK...NERN TX...MUCH OF AR...NRN LA
   
   CONCERNING...TORNADO WATCH 13...
   
   VALID 242039Z - 242145Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 13 CONTINUES.
   
   STRONGER FORCING IS GRADUALLY SPREADING INTO THE LOWER MS VALLEY AND
   THIS APPEARS TO BE AIDING UPWARD GROWTH TO ONGOING CONVECTIVE LINE
   THAT STRETCHES FROM NRN AR...SWWD INTO TX BEYOND THE CURRENT TORNADO
   WATCH...ALBEIT MUCH WEAKER ALONG TRAILING SWRN FLANK.  THIS FORCED
   LINE IS SAGGING ESEWD AT ROUGHLY 15-20KT AND WILL SOON PROGRESS INTO
   A REGION OF STEEPER SFC-3KM LAPSE RATES THAT COULD ENHANCE UPDRAFT
   INTENSITY.  ADDITIONALLY...LLJ IS EXPECTED TO INCREASE MARKEDLY WITH
   SPEEDS IN EXCESS OF 70KT INTO THE MS DELTA REGION NEAR MEM BY 00Z. 
   SEVERE THREAT CONTINUES AHEAD OF AFOREMENTIONED LINE.
   
   ..DARROW.. 02/24/2011
   
   
   ATTN...WFO...JAN...LZK...SHV...TSA...FWD...
   
   LAT...LON   32179524 35749550 35749193 32189182 32179524