Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Winter Storm Warning |
| Area(s): | East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera |
| Effective: | 2025-11-27 @ 12:59 am -> 2025-11-28 @ 6:00 pm |
| Onset: | 2025-11-27 @ 3:00 pm -> 2025-11-27 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-27 @ 12:59 am |
| Headline: | Winter Storm Warning issued November 26 at 11:59PM MST until November 28 at 5:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible with gusty north winds developing Thursday night through Friday morning. Total snow accumulations between 4 and 8 inches possible below 6000 feet and between 8 and 12 inches possible above 6000 feet. * WHERE...The Montana Hi-Line adjacent to the Rocky Mountain Front. * WHEN...From 2 PM Thursday to 5 PM MST Friday. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. Widespread blowing snow could significantly reduce visibility. |
| Alert: | Winter Storm Watch |
| Area(s): | Upper Blackfoot and MacDonald Pass |
| Effective: | 2025-11-27 @ 12:59 am -> 2025-11-28 @ 6:00 pm |
| Onset: | 2025-11-28 @ 1:00 am -> 2025-11-27 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2025-11-27 @ 12:59 am |
| Headline: | Winter Storm Watch issued November 26 at 11:59PM MST until November 28 at 5:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible with gusty north to northeast winds developing Friday morning. Total snow accumulations between 4 and 7 inches possible. * WHERE...Upper Blackfoot and MacDonald Pass. * WHEN...From late Thursday night through Friday afternoon. * IMPACTS...Travel could be very difficult, especially over mountain passes. Blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday evening and intensify after midnight before tapering off Friday afternoon. Gusty north to northeast winds developing early Friday morning could create areas of blowing and drifting snow. |
| Alert: | Winter Storm Watch |
| Area(s): | Hill County; Northern Blaine County; Bears Paw Mountains and Southern Blaine |
| Effective: | 2025-11-27 @ 12:59 am -> 2025-11-28 @ 6:00 pm |
| Onset: | 2025-11-27 @ 6:00 pm -> 2025-11-27 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2025-11-27 @ 12:59 am |
| Headline: | Winter Storm Watch issued November 26 at 11:59PM MST until November 28 at 5:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible Thursday night through Friday with gusty north winds developing Friday. Total snow accumulations between 4 and 8 inches possible. * WHERE...Bears Paw Mountains and Southern Blaine, Hill County, and Northern Blaine County. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday afternoon and intensify overnight before tapering off Friday afternoon. Gusty north winds developing on Friday could create areas of blowing and drifting snow. |
| Alert: | Winter Storm Watch |
| Area(s): | Eastern Toole and Liberty; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft |
| Effective: | 2025-11-27 @ 12:59 am -> 2025-11-28 @ 6:00 pm |
| Onset: | 2025-11-27 @ 6:00 pm -> 2025-11-27 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2025-11-27 @ 12:59 am |
| Headline: | Winter Storm Watch issued November 26 at 11:59PM MST until November 28 at 5:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible Thursday night through Friday with gusty north winds developing Friday. Total snow accumulations between 4 and 8 inches possible. * WHERE...A portion of north central Montana. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Thursday evening and Friday morning commutes. * ADDITIONAL DETAILS...Light snow is expected to develop Thursday afternoon and intensify overnight before tapering off Friday afternoon. Gusty north winds developing on Friday could create areas of blowing and drifting snow. |
| Alert: | Winter Weather Advisory |
| Area(s): | Judith Basin County and Judith Gap; Fergus County below 4500ft; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Elkhorn and Boulder Mountains; Gallatin Valley |
| Effective: | 2025-11-27 @ 12:59 am -> 2025-11-29 @ 12:00 am |
| Onset: | 2025-11-28 @ 1:00 am -> 2025-11-27 @ 4:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-27 @ 12:59 am |
| Headline: | Winter Weather Advisory issued November 26 at 11:59PM MST until November 28 at 11:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From midnight Thursday Night to 11 PM MST Friday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the Friday morning and evening commutes. |
| Alert: | Dense Fog Advisory |
| Area(s): | Central and Southeast Phillips |
| Effective: | 2025-11-26 @ 3:44 pm -> 2025-11-27 @ 1:00 pm |
| Onset: | 2025-11-26 @ 3:44 pm -> 2025-11-27 @ 6:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2025-11-26 @ 3:44 pm |
| Headline: | Dense Fog Advisory issued November 26 at 2:44PM MST until November 27 at 12:00PM MST by NWS Glasgow MT |
| Description: |
* WHAT...Visibility below a quarter mile in areas of dense fog. * WHERE...Central and Southeast Phillips County. * WHEN...Until noon MST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. |
| Alert: | Winter Storm Watch |
| Area(s): | West Glacier Region |
| Effective: | 2025-11-26 @ 12:33 pm -> 2025-11-28 @ 3:00 pm |
| Onset: | 2025-11-27 @ 6:00 pm -> 2025-11-27 @ 12:45 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2025-11-26 @ 12:33 pm |
| Headline: | Winter Storm Watch issued November 26 at 11:33AM MST until November 28 at 2:00PM MST by NWS Missoula MT |
| Description: |
* WHAT...Strong winds and heavy snow possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations between 3 and 11 inches possible. Winds could gust as high as 40 mph. Rapid drop in temperatures could quickly freeze road surfaces. * WHERE...Highway 83 Bigfork to Swan Lake, Essex, Bad Rock Canyon, Marias Pass, Glacier National Park, and Polebridge. * WHEN...From Thursday afternoon through Friday afternoon. * 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. For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. 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. The hazardous conditions could impact the Thursday evening and Friday morning commutes, especially over higher passes. |
| Alert: | Winter Storm Watch |
| Area(s): | Flathead/Mission Valleys; Butte/Blackfoot Region; Potomac/Seeley Lake Region |
| Effective: | 2025-11-26 @ 12:33 pm -> 2025-11-28 @ 3:00 pm |
| Onset: | 2025-11-28 @ 12:00 am -> 2025-11-27 @ 12:45 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2025-11-26 @ 12:33 pm |
| Headline: | Winter Storm Watch issued November 26 at 11:33AM MST until November 28 at 2:00PM MST by NWS Missoula MT |
| Description: |
* WHAT...Strong winds and heavy snow possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations between 1 and 6 inches possible. Winds could gust as high as 40 mph. Rapid drop in temperatures could quickly freeze road surfaces. * WHERE...MacDonald Pass, Highway 83 Seeley Lake to Condon, Butte, Highway 12 Garrison to Elliston, Homestake Pass, Highway 200 Bonner to Greenough, I-90 East Missoula to Bearmouth, Flathead Valley, Mission Valley, Polson, Georgetown Lake, and Flathead Lake. * WHEN...From Thursday evening through Friday afternoon. * 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. For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. 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. The hazardous conditions could impact the Friday morning commute, especially over higher passes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Clearwater Mountains; Kootenai/Cabinet Region; Lower Clark Fork Region; Missoula/Bitterroot Valleys; Bitterroot/Sapphire Mountains |
| Effective: | 2025-11-26 @ 12:33 pm -> 2025-11-28 @ 6:00 pm |
| Onset: | 2025-11-28 @ 12:00 am -> 2025-11-27 @ 12:45 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2025-11-26 @ 12:33 pm |
| Headline: | Winter Weather Advisory issued November 26 at 11:33AM MST until November 28 at 5:00PM MST by NWS Missoula MT |
| Description: |
* WHAT...Strong winds and snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations up to 3 inches. Rapid drop in temperatures could quickly freeze road surfaces. * WHERE...In IDAHO, Southern Clearwater Mountains. In MONTANA, Kootenai/Cabinet Region, Bitterroot/Sapphire Mountains, Lower Clark Fork Region, and Missoula/Bitterroot Valleys. * WHEN...From 11 PM MST /10 PM PST/ Thursday to 5 PM MST /4 PM PST/ Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Friday morning and evening commutes, especially over higher passes. |
| Alert: | Winter Storm Watch |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Western Roosevelt; Garfield; McCone; Richland; Dawson; Northern Phillips; Southwest Phillips; Eastern Roosevelt |
| Effective: | 2025-11-26 @ 12:17 pm -> 2025-11-29 @ 6:00 am |
| Onset: | 2025-11-27 @ 6:00 pm -> 2025-11-27 @ 6:15 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Glasgow MT on 2025-11-26 @ 12:17 pm |
| Headline: | Winter Storm Watch issued November 26 at 11:17AM MST until November 29 at 5:00AM MST by NWS Glasgow MT |
| Description: |
...HEAVY SNOW POSSIBLE... .An area of snow will move east into northeast Montana Thursday evening with the heaviest likely to occur Thursday overnight into Friday morning for most. The heaviest snow is expected in an area from Malta to Wolf Point south to Jordan and Zortman. * WHAT...Heavy snow possible. Total snow accumulations between 4 and 8 inches possible. * WHERE...A portion of northeast Montana. * WHEN...From Thursday afternoon through late Friday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday evening and Friday morning commutes. |