SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 512
   NWS STORM PREDICTION CENTER NORMAN OK
   350 PM MDT WED JUN 22 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN MONTANA
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
   1100 PM MDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 135
   STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH
   NORTHWEST OF GLASGOW MONTANA TO 15 MILES SOUTH SOUTHEAST OF
   LIVINGSTON MONTANA.  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.
   
   DISCUSSION...TSTMS FORMING ATTM OVER THE HIGHER TERRAIN OF W CNTRL
   AND S CNTRL MT EXPECTED TO CONTINUE MOVING/DEVELOPING NEWD INTO
   HEATED ENVIRONMENT OVER THE ADJACENT PLAINS.  AREA VWP DATA SHOW
   MODERATE /35-45 KT/ UNIDIRECTIONAL SWLY LWR TROPOSPHERIC
   FLOW...SUGGESTING POTENTIAL FOR BOWING SEGMENTS WITH HIGH WIND AND
   SOME HAIL THROUGH MID TO LATE EVENING.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...CORFIDI