229
WWUS45 KMSO 271847
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1147 AM MST SAT DEC 27 2025
IDZ005-MTZ004-272000-
/O.CAN.KMSO.WW.Y.0053.000000T0000Z-251227T2100Z/
NORTHERN CLEARWATER MOUNTAINS-LOWER CLARK FORK REGION-
1147 AM MST SAT DEC 27 2025 /1047 AM PST SAT DEC 27 2025/
..WINTER WEATHER ADVISORY IS CANCELLED
MTZ001-272000-
/O.CAN.KMSO.WW.Y.0053.000000T0000Z-251228T0000Z/
KOOTENAI/CABINET REGION-
1147 AM MST SAT DEC 27 2025
..WINTER WEATHER ADVISORY IS CANCELLED
IDZ006-MTZ006-280300-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS-
1147 AM MST SAT DEC 27 2025 /1047 AM PST SAT DEC 27 2025/
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ THIS EVENING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1
AND 4 INCHES.
* WHERE...HIGHWAY 12 LOWELL TO LOLO PASS, HIGHWAY 93 SULA TO LOST
TRAIL PASS, ELK CITY, LOLO PASS, AND DIXIE.
* WHEN...UNTIL 8 PM MST /7 PM PST/ THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
IDZ009-010-280300-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...
* WHAT...SNOW EXPECTED. THERE IS A CHANCE OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO 2
INCHES.
* WHERE...SALMON, WILLIAMS CREEK SUMMIT, HIGHWAY 28 TENDOY TO LONE
PINE, BANNOCK PASS, SHOUP, HIGHWAY 93 LOST TRAIL PASS TO
GIBBONSVILLE, AND LEMHI PASS.
* WHEN...UNTIL 8 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ002-280000-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0000Z/
WEST GLACIER REGION-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING MINOR
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE
INCH.
* WHERE...ESSEX, MARIAS PASS, POLEBRIDGE, BAD ROCK CANYON, HIGHWAY
83 BIGFORK TO SWAN LAKE, AND GLACIER NATIONAL PARK.
* WHEN...UNTIL 5 PM MST THIS AFTERNOON.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
* ADDITIONAL DETAILS...AN ARCTIC FRONT MOVING WESTWARD ACROSS THE
CONTINENTAL DIVIDE TODAY WILL BRING AN UPTICK IN NORTHEAST WINDS
IN, AND NEAR, CANYON GAPS AND DOWNSLOPE FOOTHILLS. MUCH COLDER
TEMPERATURES WITH, AND BEHIND, THIS ARCTIC FRONT. RAPID FREEZE UP
OF ANY WET OR SLUSHY ROADS IS LIKELY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ003-280300-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
FLATHEAD/MISSION VALLEYS-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...
* WHAT...SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING MINOR
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE
INCH. WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...FLATHEAD LAKE, FLATHEAD VALLEY, POLSON, AND MISSION VALLEY.
* WHEN...UNTIL 8 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
* ADDITIONAL DETAILS...AN ARCTIC FRONT IS MOVING WESTWARD ACROSS THE
CONTINENTAL DIVIDE AND INTO THE REGION TODAY BRINGING AN UPTICK IN
NORTHEAST WINDS TOWARD 50 MPH POSSIBLE IN AND NEAR CANYON GAPS AND
DOWNSLOPING FOOTHILLS. MUCH COLDER TEMPERATURES WITH, AND BEHIND,
THIS ARCTIC FRONT. RAPID FREEZE UP OF ANY WET OR SLUSHY SURFACES
IS POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ005-280000-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0000Z/
MISSOULA/BITTERROOT VALLEYS-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING MINOR
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO 2
INCHES, MAINLY IN THE BITTERROOT VALLEY.
* WHERE...BITTERROOT VALLEY AND MISSOULA.
* WHEN...UNTIL 5 PM MST THIS AFTERNOON.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ007-280300-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
BUTTE/BLACKFOOT REGION-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...
* WHAT...SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING MINOR
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE
INCH. WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...HOMESTAKE PASS, HIGHWAY 12 GARRISON TO ELLISTON, MACDONALD
PASS, GEORGETOWN LAKE, AND BUTTE.
* WHEN...UNTIL 8 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ043-280300-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
POTOMAC/SEELEY LAKE REGION-
1147 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...
* WHAT...SNOW. THERE IS A LIKELIHOOD OF DEVELOPING OR ONGOING MINOR
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS OF ONE TO
THREE INCHES.
* WHERE...I-90 EAST MISSOULA TO BEARMOUTH, HIGHWAY 200 BONNER TO
GREENOUGH, AND HIGHWAY 83 SEELEY LAKE TO CONDON.
* WHEN...UNTIL 8 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
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