MESOSCALE DISCUSSION 0795
   NWS STORM PREDICTION CENTER NORMAN OK
   0221 PM CDT TUE MAY 06 2003
   
   AREAS AFFECTED...ECNTRL TX
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 061921Z - 062115Z
   
   CONVECTION E OF AUSTIN TX SHOULD CONTINUE TO STRENGTHEN SLOWLY AS IT
   MOVES EWD. ISOLATED LARGE HAIL AND/OR DAMAGING WINDS WILL BE
   POSSIBLE WITH THE CONVECTION. WW MAY BE NECESSARY ACROSS PORTIONS OF
   CNTRL AND ERN TX BY 2030Z.
   
   DEWPOINTS IN THE LOWER TO MID 70S F AND SFC TEMPS IN THE MID TO
   UPPER 80S WERE CONTRIBUTING TO MLCAPE AROUND 3000 J/KG. THE AXIS OF
   VERY UNSTABLE AIR WAS ELONGATED FROM FAR S TX NEWD INTO SE TX. AS
   THE CONVECTION MOVES EWD INTO THE INSTABILITY AXIS...IT SHOULD
   INCREASE IN INTENSITY. DEEP LAYER SHEAR OF 40 KT WAS MARGINALLY
   SUFFICIENT FOR SUPERCELLS. HOWEVER...DEGREE OF INSTABILITY MAY BE
   ENOUGH FOR A FEW SUPERCELLS WITH LARGE HAIL AND OR/DAMAGING WIND
   GUSTS. WW MAY BE REQUIRED IN THE NEXT HOUR IF ACTIVITY CONTINUES  TO
   DEVELOP ENEWD. 
   
   
   ..BROYLES.. 05/06/2003
   
   
   ATTN...WFO...HGX...FWD...EWX...
   
   30229741 31049703 31239614 31359523 30019520 29709555
   29549629 29439740