Winter Weather Warnings / Watches / Advisories
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
006 WWUS45 KMSO 042048 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 148 PM MST Tue Feb 4 2025 MTZ001-051500- /O.UPG.KMSO.WS.A.0002.250205T0000Z-250205T1800Z/ /O.EXB.KMSO.WS.W.0003.250205T0100Z-250205T1500Z/ /O.EXT.KMSO.WW.Y.0010.000000T0000Z-250205T0100Z/ Kootenai/Cabinet Region- 148 PM MST Tue Feb 4 2025 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MST THIS EVENING... ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 8 AM MST WEDNESDAY... * WHAT...For the Winter Weather Advisory, snow. Likelihood of moderate impacts from snow is 80 percent. Additional snow accumulations up to two inches. For the Winter Storm Warning, heavy snow, blowing and drifting snow expected. Likelihood of major impacts from snow is up to 80 percent. Total snow accumulations between 3 and 6 inches. * WHERE...Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Highway 37 Eureka to Libby, and Highway 2 Kalispell to Libby. * WHEN...For the Winter Weather Advisory, until 6 PM MST this evening. For the Winter Storm Warning, from 6 PM this evening to 8 AM MST Wednesday. * IMPACTS...A band of moderate to heavy snow will overspread the area this evening, and at the same time easterly winds will increase in strength to 15 to 30 mph. The area between Happys Inn and Marion has the highest impact of localized whiteout conditions. Avoid travel in the impacted areas if possible. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...Dangerously cold wind chills between 10 and 20 below zero are expected, especially along US-2 between Happys Inn and Marion. 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. && $$ MTZ002-051500- /O.UPG.KMSO.WS.A.0002.250205T0600Z-250205T1800Z/ /O.EXB.KMSO.WS.W.0003.250205T0600Z-250205T1500Z/ /O.CON.KMSO.WW.Y.0010.000000T0000Z-250205T0600Z/ West Glacier Region- 148 PM MST Tue Feb 4 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... ...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 AM MST WEDNESDAY... * WHAT...For the Winter Weather Advisory, snow and blowing snow. Likelihood of developing or ongoing moderate impacts from 1 to 3 inches of snow is 70 percent. Winds gusting as high as 35 mph. For the Winter Storm Warning, heavy snow, blowing and drifting snow expected. Likelihood of major impacts from snow is 80 percent. Total snow accumulations between 4 and 8 inches, except up to 10 inches at both Swan Lake and Nyack. Winds gusting as high as 45 mph. * WHERE...Polebridge, Bad Rock Canyon, Marias Pass, Highway 83 Bigfork to Swan Lake, and Essex. * WHEN...For the Winter Weather Advisory, until 11 PM MST this evening. For the Winter Storm Warning, from 11 PM this evening to 8 AM MST Wednesday. * IMPACTS...Localized Blizzard conditions with visibility reduced to one quarter mile at times is expected at Badrock Canyon, and between Essex and Marias Pass. Whiteout conditions will make travel treacherous and potentially life-threatening. Due to the dangerous or impossible traveling conditions, avoid travel along the US-2 corridor if possible tonight. * ADDITIONAL DETAILS...Dangerously cold wind chills between 15 and 30 below zero. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. 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. && $$ MTZ043-051600- /O.EXT.KMSO.WS.W.0003.000000T0000Z-250205T1600Z/ Potomac/Seeley Lake Region- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 AM MST WEDNESDAY... * WHAT...Heavy snow, blowing and drifting snow. Likelihood of ongoing major impacts from snow and blowing snow is up to 90 percent. Additional snow accumulations between 6 and 12 inches. Winds gusting as high as 35 mph. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...Until 9 AM MST Wednesday. * IMPACTS...For MAJOR impacts from snow, 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. The hazardous conditions will impact travel through Wednesday morning. * ADDITIONAL DETAILS...Easterly winds of 15 to 30 mph are expected in the channeled terrain. 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. && $$ IDZ005-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Northern Clearwater Mountains- 1248 PM PST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY... * WHAT...Heavy snow. Likelihood of developing or ongoing major to extreme impacts from 6 to 10 inches or more of snow is 90 percent, and 10 to 18 inches of snow is 60 percent. Additional snow accumulations for lower elevations 4 to 8 inches, higher elevations 8 to 12 inches, and mountain ridges and peaks 12 to 18 inches. * WHERE...Highway 11 Pierce to Headquarters, Pierce, and Elk River. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Roads will likely be slick and hazardous. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Westerly winds between 15 and 25 mph will develop after midnight tonight and could bring isolated areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ IDZ006-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Southern Clearwater Mountains- 1248 PM PST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY... * WHAT...Heavy snow. Likelihood of developing or ongoing major to extreme impacts from 6 to 10 inches or more of snow is 100 percent, and 10 to 18 inches of snow is 70 percent. * WHERE...Elk City, Highway 12 Lowell to Lolo Pass, and Dixie. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Winter travel conditions. For MAJOR impacts from snow, 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. The hazardous conditions could impact travel, especially US-12. * ADDITIONAL DETAILS...Watch out for tree damage from heavy snow along US-12 between Lolo Pass and Lowell. Snowfall rates of 1 to 2 inch per hour are likely through Tuesday night. Easterly winds of 10 to 20 mph are likely along US-12 until midnight. Westerly winds between 10 and 20 mph will develop after midnight. There is a 15 percent chance for freezing rain at Elk City and points south. 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. && $$ IDZ007-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Orofino/Grangeville Region- 1248 PM PST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY... * WHAT...Heavy snow. Likelihood of developing or ongoing major impacts from 6 to 10 inches or more of snow is 80 percent, and 10 to 18 inches of snow is 50 percent. * WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Snow is expected to become heavier later this afternoon and continue overnight. It could get very slick, especially after dark. Snowfall rates could reach 0.5 inch to 1 inch per hour Tuesday evening through daybreak Wednesday. Gusty west winds of 15 to 25 mph Wednesday morning could produce localized blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel this evening and overnight. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ IDZ008-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Lower Hells Canyon/Salmon River Region- 1248 PM PST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY... * WHAT...Heavy snow expected. Likelihood of major impacts from 6 to 10 inches or more of snow is 80 percent, and 10 to 18 inches of snow is 20 percent. Heaviest snowfall will occur in the higher elevations. Additional snow accumulation in Riggins is 2 to 4 inches, and 1 to 2 inches in Hells Canyon. * WHERE...White Bird Grade and Highway 95 Slate Creek to Riggins. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. For MAJOR impacts from snow, 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. The hazardous conditions could impact the Tuesday evening commute, especially over ridges. * ADDITIONAL DETAILS...Snow is expected to become heavier later this afternoon and continue overnight. It could get very slick, especially after dark. Snowfall rates could reach 0.5 inch to 1 inch per hour Tuesday evening through daybreak Wednesday. There is a 20 percent chance that freezing rain could occur this evening from Whitebird south to Riggins. 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. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. && $$ MTZ003-051600- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1600Z/ Flathead/Mission Valleys- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MST WEDNESDAY... * WHAT...Heavy snow, blowing and drifting snow expected. Additional snow accumulations between 4 and 8 inches in the Flathead Valley, 5 to 10 inches Flathead Lake, Mission Valley, and 8 to 14 inches in Arlee. * WHERE...Flathead Valley, Mission Valley, Flathead Lake, and Polson. * WHEN...Until 9 AM MST Wednesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Winter traveling conditions. For MAJOR impacts from snow, 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. The hazardous conditions will impact the evening and morning commutes. * ADDITIONAL DETAILS...Snow intensities will increase by Tuesday evening. The north to east winds will increase in strength late evening into the overnight. Steady winds of 15 to 25 mph with gusts to 35 mph are expected in the vicinity of Flathead Lake and Highway 28 from Elmo to Hot Springs, and will produce periods of blowing and drifting snow. Badrock Canyon and Columbia Falls may experience the worst wind, with wind gusts approaching 45 mph at times, along with whiteout conditions. Dangerously cold wind chill temperatures will range from 10 to 30 below zero. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ MTZ004-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Lower Clark Fork Region- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Heavy snow, blowing and drifting snow expected. Likelihood of major impacts from snow is up to 80 percent. Additional snow accumulations between 6 and 10 inches, except 10 to 16 inches along Interstate 90 from Lookout Pass to Alberton, Noxon to Thompson Falls and Evaro Hill. * WHERE...Highway 200 Thompson Falls to Plains, Evaro Hill, I-90 Lookout Pass to Haugan, and Highway 200 Trout Creek to Heron. * WHEN...Until 11 AM MST Wednesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. For MAJOR impacts from snow, 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. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Heavy snow rates of 1 to 2 inch per hour will redevelop by Tuesday evening and continue overnight. The blowing and drifting will be the worst along I-90 east of Superior, Highway 135 between St. Regis and Paradise and Highway 200 just east of Thompson Falls. North to east winds of 10 to 25 mph are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ MTZ005-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Missoula/Bitterroot Valleys- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Heavy snow, blowing and drifting snow expected. Additional snowfall will range from 3 to 8 inches. * WHERE...Missoula and Bitterroot Valley. * WHEN...Until 11 AM MST Wednesday. * IMPACTS...For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur after dark. The hazardous conditions could impact travel, especially during the Tuesday evening commute. * ADDITIONAL DETAILS...North to east winds of 10 to 20 mph are expected. Gusts to 25 mph are possible near Hellgate Canyon. There is a 15 percent chance that freezing rain could occur in the southern Bitterroot Valley Tuesday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ MTZ006-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Bitterroot/Sapphire Mountains- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Heavy snow. Likelihood of ongoing major impacts from snow is 90 percent. Additional snow accumulations between 6 and 12 inches, except 12 to 18 inches at Lolo Pass. Winds gusting as high as 35 mph. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...Until 11 AM MST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Winter traveling conditions. For MAJOR impacts from snow, 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. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Westerly winds between 15 and 30 mph will develop Wednesday morning and could produce localized blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. && $$ MTZ007-051800- /O.CON.KMSO.WS.W.0003.000000T0000Z-250205T1800Z/ Butte/Blackfoot Region- 148 PM MST Tue Feb 4 2025 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Heavy snow, blowing and drifting snow. Likelihood of developing or ongoing major impacts from snow is up to 80 percent. Additional snow accumulations include: 1 to 3 inches Butte to Deer Lodge, 3 to 6 inches Georgetown Lake and MacDonald Pass, and 4 to 8 inches Avon to Ovando. * WHERE...Butte, MacDonald Pass, Homestake Pass, Georgetown Lake, and Highway 12 Garrison to Elliston. * WHEN...Until 11 AM MST Wednesday. * IMPACTS...Winter traveling conditions. For MAJOR impacts from snow, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Blowing and drifting snow, caused by easterly winds between 25 and 40 mph, will be expected from Elliston to Garrison Junction, and Avon to Helmville to Clearwater Junction. Gusty southwest winds between 15 and 35 mph will develop at Georgetown Lake overnight. A burst of heavy snow showers are expected Wednesday morning. Dangerously cold wind chills between 15 and 30 below zero are expected along and west of the Divide. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ009-010-051800- /O.CON.KMSO.WW.Y.0008.000000T0000Z-250205T1800Z/ Western Lemhi County-Eastern Lemhi County- 148 PM MST Tue Feb 4 2025 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST WEDNESDAY... * WHAT...Mixed precipitation. Likelihood of developing or ongoing minor impacts from snow is up to 60 percent. Light glaze expected. Additional snow accumulations up to two inches, except 5 to 10 inches at Lost Trail Pass, and 3 to 6 inches at Williams Creek Summit. Winds gusting as high as 35 mph tonight. * WHERE...Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, Williams Creek Summit, Bannock Pass, Shoup, and Salmon. * WHEN...Until 11 AM MST Wednesday. * IMPACTS...For MINOR impacts from snow, expect a few inconveniences to normal activities. Use caution while driving. Winter traveling conditions, especially at passes. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...With mild temperatures this afternoon, expect black ice formation after dark. A cold front passage by daybreak Wednesday will bring periodic snow showers. 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. && $$