SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 523
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM MDT SAT JUN 25 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          UTAH
          SOUTHWEST WYOMING
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
   800 PM MDT.
   
   HAIL TO 1 INCH 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 130
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF
   EVANSTON WYOMING TO 50 MILES WEST SOUTHWEST OF HANKSVILLE UTAH. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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.
   
   DISCUSSION...THUNDERSTORMS INCREASING ACROSS HIGHER TERRAIN UTAH.
   WITH 40-50 KT OF SWLY FLOW AND STEEP LAPSE RATES...THE HIGH BASED
   STORMS WILL DEVELOP INCREASING THREAT FOR DAMAGING WINDS THRU THE
   AFTERNOON.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
   VECTOR 22040.
   
   
   ...HALES