819
WWUS45 KMSO 182344
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
444 PM MST WED FEB 18 2026
IDZ008-190045-
/O.CAN.KMSO.WW.Y.0008.000000T0000Z-260219T1600Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
344 PM PST WED FEB 18 2026
..WINTER WEATHER ADVISORY IS CANCELLED
MTZ001-190600-
/O.EXT.KMSO.WW.Y.0008.000000T0000Z-260219T0600Z/
KOOTENAI/CABINET REGION-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MODERATE WINTER
WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS UP TO 2 INCHES.
* WHERE...HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 93 EUREKA TO
WHITEFISH, HIGHWAY 37 EUREKA TO LIBBY, AND HIGHWAY 56 BULL LAKE
ROAD.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. EXPECT A FEW INCONVENIENCES
TO NORMAL ACTIVITIES. USE CAUTION WHILE DRIVING. THE HAZARDOUS
CONDITIONS COULD IMPACT THE WEDNESDAY EVENING COMMUTE.
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.
MTZ003-190600-
/O.EXT.KMSO.WW.Y.0008.000000T0000Z-260219T0600Z/
FLATHEAD/MISSION VALLEYS-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW EXPECTED. ADDITIONAL SNOW ACCUMULATIONS UP TO TWO
INCHES IN THE MISSION VALLEY, FLATHEAD LAKE AND POLSON. WINDS
GUSTING AS HIGH AS 35 MPH FROM BADROCK CANYON TO KALISPELL.
* WHERE...MISSION VALLEY, FLATHEAD VALLEY, POLSON, AND FLATHEAD LAKE.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. USE CAUTION WHILE DRIVING.
THE HAZARDOUS CONDITIONS COULD IMPACT THE WEDNESDAY EVENING
COMMUTE.
* ADDITIONAL DETAILS...WIND CHILL TEMPERATURES WILL REMAIN IN THE
SINGLE DIGITS TO SLIGHTLY BELOW ZERO IN THE FLATHEAD VALLEY. IF
YOU HAVE TO GO OUTSIDE, WEAR SEVERAL LAYERS OF LIGHT-WEIGHT, WARM
CLOTHING AND MITTENS.
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.
MTZ006-190600-
/O.EXT.KMSO.WW.Y.0008.000000T0000Z-260219T0600Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES.
* WHERE...HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. USE CAUTION WHILE DRIVING.
THE HAZARDOUS CONDITIONS COULD IMPACT THE WEDNESDAY EVENING
COMMUTE, ESPECIALLY OVER HIGHER PASSES.
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.
MTZ002-191500-
/O.CON.KMSO.WW.Y.0008.000000T0000Z-260219T1500Z/
WEST GLACIER REGION-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
THURSDAY...
* WHAT...SNOW AND COLD TEMPERATURES EXPECTED. ADDITIONAL SNOW
ACCUMULATIONS UP TO ONE INCH, ALONG WITH GUSTY NORTHEAST WINDS OF
30 TO 35 MPH.
* WHERE...POLEBRIDGE, GLACIER NATIONAL PARK, HIGHWAY 83 BIGFORK TO
SWAN LAKE, ESSEX, MARIAS PASS, AND BAD ROCK CANYON.
* WHEN...UNTIL 8 AM MST THURSDAY.
* IMPACTS...WINTER TRAVELING CONDITIONS. USE CAUTION WHILE DRIVING.
THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY EVENING AND
WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...NORTHEAST WINDS BETWEEN 15 AND 25 MPH WITH
GUSTS TO 35 MPH HAVE BEEN GENERATING BITTERLY COLD WIND CHILL
TEMPERATURES AS COLD AS 30 BELOW ZERO. ANY EXPOSED SKIN COULD
BECOME FROSTBITTEN WITHIN 30 MINUTES IN THESE CONDITIONS. NEWBORN
LIVESTOCK MAY BE STRESSED.
WHILE NORTHEAST WINDS WILL LESSEN SOMEWHAT TONIGHT, WIND CHILL
TEMPERATURES NEAR 20 BELOW ZERO ARE 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.
MTZ004-190600-
/O.CON.KMSO.WW.Y.0008.000000T0000Z-260219T0600Z/
LOWER CLARK FORK REGION-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW EXPECTED. THERE IS A LIKELIHOOD OF MINOR TO MODERATE
WINTER WEATHER IMPACTS. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1
AND 2 INCHES. LOCALLY HIGHER AMOUNTS FOR LOCATIONS ALONG THE IDAHO
AND MONTANA BORDER, INCLUDING LOOKOUT PASS, NOXON, TROUT CREEK AND
HERON.
* WHERE...EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS, HIGHWAY
200 TROUT CREEK TO HERON, AND I-90 LOOKOUT PASS TO HAUGAN.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES.
MODERATE WINTER WEATHER IMPACTS, EXPECT DISRUPTIONS TO NORMAL
ACTIVITIES. USE CAUTION WHILE DRIVING. THE HAZARDOUS CONDITIONS
COULD IMPACT THE WEDNESDAY MORNING AND EVENING COMMUTES,
ESPECIALLY OVER HIGHER PASSES.
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.
MTZ007-043-190600-
/O.CON.KMSO.WW.Y.0008.000000T0000Z-260219T0600Z/
BUTTE/BLACKFOOT REGION-POTOMAC/SEELEY LAKE REGION-
444 PM MST WED FEB 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW EXPECTED. ADDITIONAL SNOW ACCUMULATIONS UP TO TWO
INCHES.
* WHERE...HIGHWAY 12 GARRISON TO ELLISTON, HIGHWAY 200 BONNER TO
GREENOUGH, BUTTE, HOMESTAKE PASS, HIGHWAY 83 SEELEY LAKE TO
CONDON, I-90 EAST MISSOULA TO BEARMOUTH, MACDONALD PASS, AND
GEORGETOWN LAKE.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MINOR WINTER WEATHER
IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES. USE
CAUTION WHILE DRIVING. THE HAZARDOUS CONDITIONS COULD IMPACT THE
WEDNESDAY EVENING COMMUTE, ESPECIALLY OVER HIGHER PASSES.
* ADDITIONAL DETAILS...NORTHEAST WINDS BETWEEN 15 AND 25 MPH WITH
GUSTS TO 35 MPH HAVE BEEN GENERATING BITTERLY COLD WIND CHILL
TEMPERATURES AS COLD AS 30 BELOW ZERO ALONG THE DIVIDE. ANY
EXPOSED SKIN COULD BECOME FROSTBITTEN WITHIN 30 MINUTES IN THESE
CONDITIONS. NEWBORN LIVESTOCK MAY BE STRESSED.
WHILE NORTHEAST WINDS WILL LESSEN SOMEWHAT TONIGHT, WIND CHILL
TEMPERATURES NEAR 20 BELOW ZERO ARE 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.
AL
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