SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 242
   NWS STORM PREDICTION CENTER NORMAN OK
   355 PM CDT TUE MAY 10 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          FAR SOUTHEASTERN NEW MEXICO
          SOUTHWEST AND FAR WEST CENTRAL TEXAS
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 355 PM UNTIL
   1000 PM CDT.
   
   HAIL TO 3 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 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH
   SOUTHEAST OF MARFA TEXAS TO 45 MILES WEST NORTHWEST OF LUBBOCK
   TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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 241...
   
   DISCUSSION...AIR MASS IS STRONGLY UNSTABLE AND WEAKLY CAPPED ACROSS
   SWRN TX LATE THIS AFTERNOON.  THUNDERSTORMS CURRENTLY FORMING OVER
   HIGHER TERRAIN OF SWRN TX WILL LIKELY INCREASE ONCE THEY INTERACT
   WITH RICH GULF MOISTURE AVAILABLE OVER THE WEST TX PLAINS.  OTHER
   ISOLATED STORMS MAY ALSO FORM NEAR DRY LINE AND WITH INCREASING SLY
   LLJ THROUGH THE EVENING ACROSS WW.  VERY LARGE HAIL AND ISOLATED
   DAMAGING WINDS WILL BE PRIMARY SEVERE THREATS...WITH SUFFICIENT
   SHEAR FOR SUPERCELLS AND MULTICELL CLUSTERS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 23020.
   
   
   ...EVANS