MESOSCALE DISCUSSION 0497
   NWS STORM PREDICTION CENTER NORMAN OK
   0358 PM CDT THU APR 29 2004
   
   AREAS AFFECTED...WRN/SW TX
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 292058Z - 292300Z
   
   ISOLD SEVERE STORMS WILL BE POSSIBLE ACROSS PORTIONS OF WRN/SW TX
   LATE THIS AFTERNOON/EARLY EVENING.
   
   HIGH BASED CU CONTINUES TO DEVELOP ACROSS PORTIONS OF WRN/SW TX
   BEHIND DRYLINE. GIVEN INVERTED-V PROFILES/DEEPLY MIXED ENVIRONMENT
   BEHIND DRYLINE...DAMAGING WINDS WOULD BE MAIN HAZARD WITH INITIAL
   DEVELOPMENT. A THREAT FOR ISOLD LARGE HAIL WOULD EXIST WITH MOST
   VIGOROUS ACTIVITY...NAMELY IF TSTMS ARE ABLE TO TAP RELATIVELY
   BETTER MOISTURE EAST OF DRYLINE WHERE MLCAPE IS ON THE ORDER OF 1000
   J/KG. MARGINAL DEEP LAYER SHEAR /AOB 30 KTS/ WILL TEND TO LIMIT LONG
   LIVED STORM ORGANIZATION. ANY TSTM DEVELOPMENT WILL LARGELY BE
   DRIVEN BY DIURNAL HEATING...THUS A DIMINISHING TREND WOULD LIKELY
   OCCUR AROUND/AFTER SUNSET.
   
   ..GUYER.. 04/29/2004
   
   
   ATTN...WFO...EWX...SJT...LUB...MAF...
   
   33080143 33020086 32979940 32299970 31100037 29990081
   29760112 29900243 30800238 32120191