MESOSCALE DISCUSSION 0761
   NWS STORM PREDICTION CENTER NORMAN OK
   0747 AM CDT WED MAY 09 2007
   
   AREAS AFFECTED...MUCH OF SW TX
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 091247Z - 091445Z
   
   STORMS WILL INCREASE THROUGH THE MORNING AND A WW COULD BE REQUIRED
   MAINLY FOR HAIL.
   
   SATELLITE IMAGERY SHOWS LIFT FROM UPPER TROUGH EMERGING OUT OF NM
   INTO SW TX...WITH STORMS ALREADY ERUPTING OVER A LARGE AREA. EPZ
   SOUNDING SHOWS STEEP MID LEVEL LAPSE RATES WITH MODERATE MID TO
   UPPER LEVEL FLOW...WHILE DRT SOUNDING SHOWS A VERY MOIST PROFILE
   WITH DEEP SELY LOW LEVEL FLOW ADVECTING MOISTURE NWWD. THE RESULT IS
   AN ENVIRONMENT FAVORABLE FOR STRONG TO SEVERE THUNDERSTORMS AND SOME
   SUPERCELLS CAPABLE OF LARGE HAIL WITH MAXIMUM SIZE UP TO GOLF BALL
   ACROSS THE TRANSPECOS REGION.
   
   ..JEWELL.. 05/09/2007
   
   
   ATTN...WFO...EWX...SJT...MAF...EPZ...
   
   31080502 31670439 32010311 32140251 32170146 30659989
   29729963 28910012 28600052 29360105 29700152 29710221
   29650262 28860314 29150365 29560452 30130474 30560496