WWUS45 KMSO 101757 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1157 AM MDT Tue Mar 10 2026 IDZ005-111800- /O.EXA.KMSO.WS.W.0002.260312T0000Z-260314T1800Z/ Northern Clearwater Mountains- 1057 AM PDT Tue Mar 10 2026 ...WINTER STORM WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 11 AM PDT SATURDAY... * WHAT...Heavy snow expected. There is a likelihood of extreme winter storm impacts. Total snow accumulations 1 to 5 inches in the lower elevations and 20 to 50 inches in the higher terrain. Winds gusting as high as 35 mph. * WHERE...Highway 11 Pierce to Headquarters, Pierce, and Elk River. * WHEN...From 5 PM Wednesday to 11 AM PDT Saturday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes, especially over higher passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ002-111800- /O.CON.KMSO.WS.W.0002.260312T0000Z-260314T1800Z/ /O.CON.KMSO.WW.Y.0013.260310T1800Z-260312T0000Z/ West Glacier Region- 1157 AM MDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO NOON MDT SATURDAY... * WHAT...For the Winter Weather Advisory, snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations between 1 and 7 inches of additional snow. Winds gusting as high as 35 mph. For the Winter Storm Warning, heavy snow expected. There is a likelihood of extreme winter storm impacts. Total snow accumulations between 3 and 7 inches in the lower elevations and 20 to 40 inches in the higher elevations including Marias Pass. Winds gusting as high as 60 mph. * WHERE...Bad Rock Canyon, Polebridge, Marias Pass, Glacier National Park, Essex, and Highway 83 Bigfork to Swan Lake. * WHEN...For the Winter Weather Advisory, until 6 PM MDT Wednesday. For the Winter Storm Warning, from 6 PM Wednesday to noon MDT Saturday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. 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. && $$ IDZ006-111800- /O.CON.KMSO.WS.W.0002.260312T0000Z-260314T1800Z/ Southern Clearwater Mountains- 1057 AM PDT Tue Mar 10 2026 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM WEDNESDAY TO 11 AM PDT SATURDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. There is a likelihood of extreme winter storm impacts. Total snow accumulations between 2 and 6 inches in the lower elevations and 30 to 60 inches in the higher elevations. Winds gusting as high as 45 mph. * WHERE...Dixie. * WHEN...From 5 PM Wednesday to 11 AM PDT Saturday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes, especially over higher passes. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-111800- /O.CON.KMSO.WS.W.0002.260312T0000Z-260314T1800Z/ Lower Clark Fork Region- 1157 AM MDT Tue Mar 10 2026 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO NOON MDT SATURDAY... * WHAT...Heavy snow expected. There is a likelihood of extreme winter storm impacts. Total snow accumulations 1 to 4 inches in the lower elevations and 12 to 24 inches in the higher elevations. Winds gusting as high as 45 mph. * WHERE...Highway 200 Thompson Falls to Plains, Evaro Hill, I-90 Lookout Pass to Haugan, and Highway 200 Trout Creek to Heron. * WHEN...From 6 PM Wednesday to noon MDT Saturday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. The hazardous conditions could impact the Thursday morning and evening commutes, especially over higher passes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow intensity is expected to decrease during the day Thursday during the strongest winds then increase after sunset. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ006-111800- /O.CON.KMSO.WS.W.0002.260312T0000Z-260314T1800Z/ Bitterroot/Sapphire Mountains- 1157 AM MDT Tue Mar 10 2026 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO NOON MDT SATURDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected above 5000 feet. There is a likelihood of major winter weather impacts to isolated extreme winter storm impacts. Total snow accumulations between 2 to 6 inches in the lower elevations and 20 to 40 inches in the higher elevations. Winds gusting as high as 50 mph. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...From 6 PM Wednesday to noon MDT Saturday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. The hazardous conditions could impact the Thursday morning and evening commutes, especially over higher passes. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$