SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 524
   NWS STORM PREDICTION CENTER NORMAN OK
   125 PM MDT SAT JUN 25 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEAST IDAHO
          SOUTHWEST MONTANA
          WESTERN WYOMING
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
   800 PM MDT.
   
   HAIL TO 1.5 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 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST SOUTHWEST
   OF MALAD CITY IDAHO TO 50 MILES WEST NORTHWEST OF HARLOWTON
   MONTANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 523...
   
   DISCUSSION...THUNDERSTORMS INCREASING OVER HIGHER TERRAIN.  WITH
   40-50KT SWLY MID LEVEL FLOW AND STEEP LAPSE RATES THERE WILL BE AN
   INCREASING WIND DAMAGE THREAT AS STORMS MOVE NEWD INTO LOWER
   ELEVATIONS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 22035.
   
   
   ...HALES