

601 

WWUS20 KWNS 300101

SEL5

SPC WW 300101

MTZ000-300400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 575

NWS STORM PREDICTION CENTER NORMAN OK

805 PM CDT WED JUN 29 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF NORTHEAST MONTANA



EFFECTIVE THIS WEDNESDAY EVENING FROM 805 PM UNTIL 1100 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH OF WOLF POINT

MONTANA TO 25 MILES SOUTH OF WOLF POINT MONTANA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU5).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 574...



DISCUSSION...SUPERCELLS DEVELOPED RAPIDLY AS SEVERE THUNDERSTORMS

MOVED INTO A MUCH MORE UNSTABLE ENVIRONMENT OVER NERN MT.  IN

ADDITION TO VERY LARGE HAIL A COUPLE OF TORNADOES ARE POSSIBLE AS

THE SUPERCELLS MOVE ACROSS THE WATCH AREA.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...HALES

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