108
WWUS85 KMSO 142334
SPSMSO
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
534 PM MDT SUN SEP 14 2025
MTZ005>007-043-150015-
BITTERROOT/SAPPHIRE MOUNTAINS MT-MISSOULA/BITTERROOT VALLEYS MT-
BUTTE/BLACKFOOT REGION MT-POTOMAC/SEELEY LAKE REGION MT-
534 PM MDT SUN SEP 14 2025
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SOUTH CENTRAL
MISSOULA, NORTHWESTERN DEER LODGE, NORTHEASTERN RAVALLI, CENTRAL
GRANITE AND SOUTHERN POWELL COUNTIES THROUGH 615 PM MDT...
AT 532 PM MDT, DOPPLER RADAR WAS TRACKING A CLUSTER OF STRONG
THUNDERSTORMS 18 MILES EAST OF WOODSIDE, OR 19 MILES EAST OF
HAMILTON, MOVING NORTHEAST AT 30 MPH.
HAZARD...WIND GUSTS UP TO 40 MPH, HEAVY RAINFALL, FREQUENT
LIGHTNING, 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 NEAR AND BELOW
STEEP TERRAIN. PONDING ON ROADWAYS AND IN LOW-LYING AREAS
POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
PHILIPSBURG, QUIGLEY, PORTERS CORNER, SKALKAHO PASS, PRINCETON, AND
CLINTON.
THIS INCLUDES INTERSTATE 90 NEAR MILE MARKER 118, AND BETWEEN MILE
MARKERS 121 AND 126.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM AND MAY LEAD TO
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
THIS STORM 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 4606 11377 4638 11412 4680 11375 4631 11300
TIME...MOT...LOC 2332Z 226DEG 25KT 4631 11377
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
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