MESOSCALE DISCUSSION 1068
   NWS STORM PREDICTION CENTER NORMAN OK
   0524 PM CDT FRI JUN 08 2007
   
   AREAS AFFECTED...SOUTHWEST TX
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 082224Z - 090030Z
   
   AT LEAST ISOLATED SEVERE STORMS MAY BECOME INCREASINGLY LIKELY
   THROUGH EARLY/MID EVENING ACROSS FAR SOUTHWEST TX. WILL MONITOR FOR
   A POSSIBLE WATCH.
   
   LATEST SURFACE ANALYSIS FEATURES A STALLING FRONTAL BOUNDARY ACROSS
   FAR SOUTHWEST TX LATE THIS AFTERNOON. A MOIST/UNSTABLE AIRMASS
   RESIDES ALONG AND SOUTH OF THE FRONT...WITH AN EVOLVING EASTERLY
   UPSLOPE COMPONENT IN THE WAKE OF THE FRONT AS LOW LEVEL WINDS BECOME
   MORE EASTERLY. THE COMBINATION OF THE STALLING FRONT AND OROGRAPHIC
   FORCING SHOULD LEAD TO GRADUALLY INCREASING THUNDERSTORM COVERAGE
   THROUGH EARLY/MID EVENING...WITH AT LEAST MODERATE INSTABILITY
   FAVORING THE POSSIBILITY FOR SEVERE STORMS. ALTHOUGH LOW TO MID
   TROPOSPHERIC WIND SPEEDS ARE MODEST PER REGIONAL PROFILER/WSR-88D
   VWP DATA AND A 18Z SPECIAL RAOB FROM DEL RIO...INCREASING LOW LEVEL
   EASTERLY WINDS WILL PROMOTE VEERED WIND PROFILES WITH AMPLE
   DIRECTIONAL SHEAR FOR SOME SUPERCELL STRUCTURES. PRIMARY HAZARD
   SHOULD BE LARGE HAIL...ALTHOUGH DAMAGING WINDS ARE POSSIBLE...AND AN
   ISOLATED TORNADO CANNOT BE RULED OUT THIS EVENING IN THE BIG
   BEND/PRESIDIO VALLEY VICINITY.
   
   ..GUYER.. 06/08/2007
   
   
   ATTN...WFO...MAF...EPZ...
   
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