MESOSCALE DISCUSSION 0366
   NWS STORM PREDICTION CENTER NORMAN OK
   0739 PM CDT MON APR 01 2013
   
   AREAS AFFECTED...LOW ROLLING PLAINS/BIG COUNTRY OF TX
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 78...
   
   VALID 020039Z - 020145Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 78
   CONTINUES.
   
   SUMMARY...CONFIDENCE HAS LOWERED WITH REGARD TO THE NEED FOR
   DOWNSTREAM WW ISSUANCE WITH THE EXPECTED SEWD EVOLUTION OF A SMALL
   TSTM CLUSTER FROM THE ERN PORTION OF WW 78...BUT A WW ISSUANCE
   REMAINS POSSIBLE.
   
   DISCUSSION...INDIVIDUAL UPDRAFTS HAVE LARGELY MERGED INTO A
   CONSOLIDATED TSTM CLUSTER OVER NWRN TX. SURFACE DEW POINTS HAVE
   FALLEN OR REMAIN STATIONARY IN THE 40S AHEAD OF THIS CLUSTER IN THE
   LOW ROLLING PLAINS/BIG COUNTRY WITH OBJECTIVE ANALYSIS NOW
   SUGGESTING MLCAPE HAS DECREASED BELOW 500 J/KG. A NOTABLE DRY POCKET
   IS ALSO EVIDENT IN GOES PW DATA...WITH MORE ROBUST GULF MOISTURE
   HOLDING FROM THE HILL COUNTRY SWD. IN THE NEAR-TERM...SEVERE
   POTENTIAL SHOULD REMAIN LOCALIZED AND DECREASE AT LEAST SOMEWHAT IN
   AMPLITUDE AS ACTIVITY EVOLVES SEWD THIS EVENING. BY LATE EVENING...A
   S/SELY LLJ WILL YIELD INCREASING MOISTURE ADVECTION AND SHOULD A
   CLUSTER BE ONGOING COULD SUPPORT RE-INTENSIFICATION OF THE WIND/HAIL
   THREAT.
   
   ..GRAMS.. 04/02/2013
   
   
   ATTN...WFO...FWD...OUN...SJT...LUB...
   
   LAT...LON   33749913 33179863 32349886 32219924 32720026 33050069
               33450069 33819993 33749913