201
WWUS20 KWNS 142335
SEL8
SPC WW 142335
MTZ000-150700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 488
NWS STORM PREDICTION CENTER NORMAN OK
535 PM MDT TUE JUL 14 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL INTO NORTHEAST MONTANA
* EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 535
PM UNTIL 100 AM MDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
SUMMARY...THUNDERSTORMS ARE FORECAST TO DEVELOP AND INTENSIFY
THROUGH THIS EVENING ACROSS CENTRAL MONTANA. A FEW SUPERCELLS
YIELDING A RISK FOR LARGE HAIL AND SEVERE GUSTS WILL BE POSSIBLE
WITH THE INITIAL THUNDERSTORM ACTIVITY. BY MID EVENING, ADDITIONAL
STORMS ARE FORECAST WITH AN ORGANIZED CLUSTER POTENTIALLY EVOLVING
AND MOVING EAST ACROSS PORTIONS OF THE WATCH. SEVERE GUSTS WILL
PROBABLY BECOME THE MAIN HAZARD BY MID TO LATE EVENING COINCIDENT
WITH THIS EXPECTED TRANSITION TO AN ORGANIZED THUNDERSTORM CLUSTER.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTHWEST OF
HELENA MT TO 45 MILES EAST SOUTHEAST OF GLASGOW MT. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU8).
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.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
26025.
...SMITH
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