230
WWUS85 KMSO 150042
SPSMSO
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
642 PM MDT SUN SEP 14 2025
MTZ007-043-150130-
BUTTE/BLACKFOOT REGION MT-POTOMAC/SEELEY LAKE REGION MT-
642 PM MDT SUN SEP 14 2025
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTHEASTERN
MISSOULA, NORTHEASTERN GRANITE AND POWELL COUNTIES THROUGH 730 PM
MDT...
AT 640 PM MDT, DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG
A LINE EXTENDING FROM 12 MILES NORTHEAST OF BONNER-WEST RIVERSIDE TO
10 MILES EAST OF GARRISON. MOVEMENT WAS NORTH AT 35 MPH.
HAZARD...WIND GUSTS UP TO 50 MPH, FREQUENT LIGHTNING, HEAVY
RAINFALL, AND PEA SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...GUSTY WINDS COULD KNOCK DOWN TREE LIMBS AND BLOW AROUND
UNSECURED OBJECTS. MINOR DAMAGE TO OUTDOOR OBJECTS IS
POSSIBLE. LOCALIZED FLASH FLOODING POSSIBLE IN AND BENEATH
STEEP TERRAIN. LOWLAND/ROADWAY PONDING POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
OVANDO, SEELEY LAKE, GARNET, FINN, HELMVILLE, CLEARWATER, GREENOUGH,
AVON, WOODWORTH, ELLISTON, AND BROCK CREEK.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
HIGHWAY 12 GARRISON TO MACDONALD PASS BETWEEN MILE MARKERS 4 AND 21.
HIGHWAY 83 BETWEEN MILE MARKERS 0 AND 31.
HIGHWAY 200 E BETWEEN MILE MARKERS 20 AND 63.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
THESE STORMS MAY INTENSIFY, SO BE CERTAIN TO MONITOR LOCAL RADIO
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 4645 11250 4703 11384 4751 11359 4732 11306
4718 11305 4718 11280 4683 11280 4683 11254
4670 11253 4670 11241 4666 11240 4665 11232
TIME...MOT...LOC 0040Z 182DEG 31KT 4703 11375 4653 11259
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
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