WATCHES: Severe Thunderstorm Watch Number 399

WWUS20 KWNS 081915
SEL9
SPC WW 081915
MTZ000-090100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 399
NWS STORM PREDICTION CENTER NORMAN OK
115 PM MDT MON JUL 8 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST MONTANA

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 115 PM UNTIL
700 PM MDT.

* PRIMARY THREATS INCLUDE...
SEVERAL VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER
POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 100 MILES WEST
SOUTHWEST OF GLASGOW MONTANA TO 10 MILES EAST NORTHEAST OF SIDNEY
MONTANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 398...

DISCUSSION...AN INTENSE THUNDERSTORM OVER PHILLIPS COUNTY MT WILL
TRACK EASTWARD THROUGH THE AFTERNOON TODAY...POSING A RISK OF VERY
LARGE HAIL AND DAMAGING WINDS OVER THE WATCH AREA. OTHER ISOLATED
STORMS MAY ALSO FORM IN THIS MODERATELY UNSTABLE AND FAVORABLY
SHEARED ENVIRONMENT.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27035.


...HART

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