528
WWUS45 KMSO 261959
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
159 PM MDT SUN OCT 26 2025
IDZ005-006-008-009-MTZ006-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-LOWER
HELLS CANYON/SALMON RIVER REGION-WESTERN LEMHI COUNTY-
BITTERROOT/SAPPHIRE MOUNTAINS-
159 PM MDT SUN OCT 26 2025 /1259 PM PDT SUN OCT 26 2025/
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM MDT /5 PM
PDT/ THIS EVENING TO NOON MDT /11 AM PDT/ MONDAY ABOVE 3500 FEET...
* WHAT...SNOW EXPECTED ABOVE 3500 FEET. THERE IS A LIKELIHOOD OF
MINOR TO MODERATE WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS
UP TO 4 INCHES.
* WHERE...IN IDAHO, LOWER HELLS CANYON/SALMON RIVER REGION, NORTHERN
CLEARWATER MOUNTAINS, SOUTHERN CLEARWATER MOUNTAINS, AND WESTERN
LEMHI COUNTY. IN MONTANA, BITTERROOT/SAPPHIRE MOUNTAINS.
* WHEN...FROM 6 PM MDT /5 PM PDT/ THIS EVENING TO NOON MDT /11 AM
PDT/ MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
MTZ001-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
KOOTENAI/CABINET REGION-
159 PM MDT SUN OCT 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS UP TO 3 INCHES.
MORE MODERATE IMPACTS AROUND BULL LAKE AND HIGHWAY 2 FROM HAPPYS
INN TO KILA.
* WHERE...HIGHWAY 37 EUREKA TO LIBBY, HIGHWAY 56 BULL LAKE ROAD,
HIGHWAY 2 KALISPELL TO LIBBY, AND HIGHWAY 93 EUREKA TO WHITEFISH.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...FALLING TEMPERATURES WILL LEAD TO RAPIDLY
FREEZING WET ROADWAYS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
MTZ002-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
WEST GLACIER REGION-
159 PM MDT SUN OCT 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS UP TO 4 INCHES.
WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...GLACIER NATIONAL PARK, HIGHWAY 83 BIGFORK TO SWAN LAKE,
MARIAS PASS, ESSEX, BAD ROCK CANYON, AND POLEBRIDGE.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...FALLING TEMPERATURES EARLY SUNDAY MORNING
WILL LEAD TO RAPIDLY FREEZING WET ROADWAYS AT THE HIGHER
ELEVATIONS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
MTZ004-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
LOWER CLARK FORK REGION-
159 PM MDT SUN OCT 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A CHANCE OF MINOR WINTER WEATHER
IMPACTS. TOTAL SNOW ACCUMULATIONS 2 TO 5 INCHES ABOVE 4000 FEET.
* WHERE...I-90 LOOKOUT PASS TO HAUGAN, EVARO HILL.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...FALLING TEMPERATURES EARLY SUNDAY MORNING
WILL LEAD TO RAPIDLY FREEZING WET ROADWAYS AT THE HIGHER
ELEVATIONS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
MTZ007-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
BUTTE/BLACKFOOT REGION-
159 PM MDT SUN OCT 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A CHANCE OF MINOR WINTER WEATHER
IMPACTS. TOTAL SNOW ACCUMULATIONS UP TO ONE INCH. WINDS GUSTING AS
HIGH AS 35 MPH.
* WHERE...HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS,
GEORGETOWN LAKE, MACDONALD PASS, AND BUTTE.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...FALLING TEMPERATURES WILL LEAD TO RAPIDLY
FREEZING WET ROADWAYS AT THE HIGHER ELEVATIONS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
MTZ043-271800-
/O.CON.KMSO.WW.Y.0040.251027T0000Z-251027T1800Z/
POTOMAC/SEELEY LAKE REGION-
159 PM MDT SUN OCT 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON MDT MONDAY...
* WHAT...SNOW EXPECTED. THERE IS A CHANCE OF MINOR WINTER WEATHER
IMPACTS. TOTAL SNOW ACCUMULATIONS UP TO TWO INCHES. HIGHER AMOUNTS
IN THE MOUNTAINS.
* WHERE...HIGHWAY 83 SEELEY LAKE TO CONDON, I-90 EAST MISSOULA TO
BEARMOUTH, AND HIGHWAY 200 BONNER TO GREENOUGH.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT MONDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
* ADDITIONAL DETAILS...FALLING TEMPERATURES WILL LEAD TO RAPIDLY
FREEZING WET ROADWAYS AT THE HIGHER ELEVATIONS.
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.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
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