MESOSCALE DISCUSSION 0789
   NWS STORM PREDICTION CENTER NORMAN OK
   0219 PM CDT MON MAY 05 2008
   
   AREAS AFFECTED...FAR SW TX
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 051919Z - 052115Z
   
   ISOLATED SEVERE THUNDERSTORMS WITH MAINLY A LARGE HAIL THREAT ARE
   EXPECTED TO FORM THIS AFTERNOON...AND A WW COULD BE REQUIRED.
   
   SURFACE ANALYSIS SHOWS VERY MOIST AND UNSTABLE AIR SPREADING WWD
   WITH DEWPOINTS INTO THE LOWER 60S AS FAR W AS PECOS AND FT.
   STOCKTON. CONTINUED SURFACE HEATING SHOULD ERODE THE CAP ESPECIALLY
   IN THE VICINITY OF THE MTNS WHERE TCU WERE NOTED AS OF 19Z. MODIFIED
   FORECAST SOUNDINGS INDICATE THAT ANY STORMS THAT MANAGE TO FORM WILL
   LIKELY PERSIST AS THEY TRAVEL EWD AT 15-20 MPH. MID LEVEL FLOW
   FIELDS ARE NOT VERY STRONG...BUT SELY LOW LEVEL WINDS VEER TO WSWLY
   AND WILL HELP MAXIMIZE DEEP LAYER SHEAR VECTORS TO 35-45 KT.
   SUPERCELLS ARE LIKELY GIVEN THE STRONG INSTABILITY AND SUFFICIENTLY
   LONG HODOGRAPHS...WITH SOME SPLITTING POSSIBLE. VERY LARGE HAIL WILL
   BE LIKELY.
   
   ..JEWELL.. 05/05/2008
   
   
   ATTN...WFO...EWX...SJT...MAF...EPZ...
   
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