SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 751
   NWS STORM PREDICTION CENTER NORMAN OK
   1240 PM MDT SUN AUG 28 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH CENTRAL  AND SOUTHEAST NEW MEXICO
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL 800
   PM MDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF
   CORONA NEW MEXICO TO 45 MILES WEST SOUTHWEST OF CARLSBAD NEW
   MEXICO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
   PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
   WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
   WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
   TORNADOES.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 750...
   
   DISCUSSION...CONVECTION IS DEVELOPING OVER THE E SLOPES OF THE
   SACRAMENTO MOUNTAINS IN ADVANCE OF A MID LEVEL SHORTWAVE TROUGH THAT
   IS MOVING SEWD OVER CENTRAL NM.  ASCENT IN ADVANCE OF THIS
   WAVE...COMBINED WITH DAYTIME HEATING AND WEAK UPSLOPE LOW-LEVEL
   FLOW...WILL SUPPORT AN INCREASE IN CONVECTION THROUGH THE AFTERNOON.
    LARGE HAIL AND ISOLATED DAMAGING GUSTS WILL BE POSSIBLE GIVEN THE
   MODEST MID LEVEL FLOW...STEEP LAPSE RATES...AND MLCAPE NEAR 1500
   J/KG.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 34015.
   
   
   ...THOMPSON