MESOSCALE DISCUSSION 0638
   NWS STORM PREDICTION CENTER NORMAN OK
   0706 PM CDT WED APR 29 2009
   
   AREAS AFFECTED...SW TX
   
   CONCERNING...TORNADO WATCH 211...
   
   VALID 300006Z - 300130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 211 CONTINUES.
   
   TWO SUPERCELLS ONGOING ACROSS SW TX WILL LIKELY CONTINUE TO HAVE A
   THREAT FOR LARGE HAIL AND TORNADOES OVER THE 1 TO 2 HOURS. AN
   ISOLATED WIND DAMAGE THREAT MAY ALSO EXIST. TORNADO WATCH 211 HAD
   BEEN LOCALLY EXPANDED ACROSS EDWARDS AND KINNEY COUNTIES.
   
   THE LATEST SFC ANALYSIS SHOWS A DRYLINE IN SW TX WITH MID TO UPPER
   60S F DEWPOINTS LOCATED AROUND DEL RIO AND TO THE SOUTHEAST. THIS IS
   CREATING A VERY UNSTABLE AIRMASS WHICH SHOULD SUSTAIN THE STORMS
   SEWD INTO THE FAR SERN PART OF WW 211 OVER THE NEXT 1 TO 2 HOURS.
   ACROSS THE NRN PART OF WW 211...IT APPEARS UNLIKELY THAT NEW CELLS
   WILL DEVELOP DUE TO WEAK LOW-LEVEL CONVERGENCE. FOR THIS
   REASON...PARTS OF WW 211 WILL LIKELY BE CLEARED BEFORE EXPIRATION.
   
   ..BROYLES.. 04/30/2009
   
   
   ATTN...WFO...EWX...SJT...MAF...
   
   LAT...LON   32110174 32119965 31019966 30969948 30559947 30429930
               30279931 30289974 30119975 30100007 29100012 29060067
               29610136 29720142 29730208 30770353 31330300 31250272
               31350261 31200250 31080245 31080231 31600234 31620176
               32110174