MESOSCALE DISCUSSION 2057
   NWS STORM PREDICTION CENTER NORMAN OK
   0243 PM CDT THU AUG 25 2011
   
   AREAS AFFECTED...SRN TX
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 251943Z - 252045Z
   
   THREAT FOR ISOLATED DAMAGING WIND WILL PERSIST OVER A PORTION OF SRN
   TX INTO THE EARLY EVENING. GIVEN LOCALIZED NATURE OF THE THREAT WITH
   LIMITED AREAL COVERAGE...WW ISSUANCE WILL PROBABLY NOT BE NEEDED BUT
   AREA WILL CONTINUE TO BE MONITORED.
   
   DESPITE WEAK MID-LEVEL LAPSE RATES...DIABATIC WARMING OF THE MOIST
   BOUNDARY LAYER HAS CONTRIBUTED TO MODERATE INSTABILITY OVER SRN TX
   DOWNSTREAM FROM A CLUSTER OF STORMS MOVING SWWD AT 30-35 KT. GIVEN
   WEAK CAP...ACTIVITY WILL LIKELY CONTINUE DEVELOPING SWWD ALONG THE
   CONVECTIVE OUTFLOW BOUNDARY. BELT OF STRONGER /35-40 KT/ NELY FLOW
   IN THE 700-500 MB LAYER EXISTS IN ASSOCIATION WITH SWWD MOVING VORT
   MAX. THIS ALONG WITH 30-35F BOUNDARY LAYER DEWPOINT SPREADS AND
   STEEP LOW-LEVEL LAPSE RATES SHOULD PROMOTE A THREAT FOR ISOLATED
   STRONG WIND GUSTS AS ACTIVITY DEVELOPS SWWD NEXT FEW HOURS.
   
   ..DIAL.. 08/25/2011
   
   
   ATTN...WFO...CRP...EWX...BRO...
   
   LAT...LON   28749794 28269737 27779727 27279758 27019840 27789919
               28589928 28999867 28749794