Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Winter Storm Watch |
| Area(s): | Little Belt and Highwood Mountains; Big Belt, Bridger and Castle Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2025-12-03 @ 2:33 pm -> 2025-12-06 @ 6:00 am |
| Onset: | 2025-12-04 @ 6:00 pm -> 2025-12-04 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2025-12-03 @ 2:33 pm |
| Headline: | Winter Storm Watch issued December 3 at 1:33PM MST until December 6 at 5:00AM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 40 mph. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From Thursday afternoon through late Friday night. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. * ADDITIONAL DETAILS...Significant travel impacts to the Thursday and Friday commutes are possible for Bozeman Pass and along Highway 191 south of Bozeman. |
| Alert: | Winter Storm Watch |
| Area(s): | East Glacier Park Region; Southern Rocky Mountain Front; Northwest Beaverhead County |
| Effective: | 2025-12-03 @ 2:33 pm -> 2025-12-06 @ 6:00 pm |
| Onset: | 2025-12-05 @ 6:00 am -> 2025-12-04 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2025-12-03 @ 2:33 pm |
| Headline: | Winter Storm Watch issued December 3 at 1:33PM MST until December 6 at 5:00PM MST by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 40 mph. * WHERE...The Continental Divide along the Rocky Mountain Front, and Northwest Beaverhead County. * WHEN...From late Thursday night through Saturday afternoon. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. |
| Alert: | Winter Storm Watch |
| Area(s): | Northern Clearwater Mountains; Southern Clearwater Mountains; West Glacier Region; Lower Clark Fork Region; Bitterroot/Sapphire Mountains; Potomac/Seeley Lake Region |
| Effective: | 2025-12-03 @ 2:26 pm -> 2025-12-06 @ 6:00 pm |
| Onset: | 2025-12-05 @ 6:00 am -> 2025-12-05 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2025-12-03 @ 2:26 pm |
| Headline: | Winter Storm Watch issued December 3 at 1:26PM MST until December 6 at 5:00PM MST by NWS Missoula MT |
| Description: |
* WHAT...Heavy mixed precipitation possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations of 3 to 7 inches along valley bottoms, 7 to 15 inches at mountain pass level, and 24 to 36 inches along mountain crests. Ice accumulations around a light glaze possible. * WHERE...In IDAHO, Northern Clearwater Mountains and Southern Clearwater Mountains. In MONTANA, West Glacier Region, Bitterroot/Sapphire Mountains, Lower Clark Fork Region, and Potomac/Seeley Lake Region. * WHEN...From late Thursday night through Saturday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes, especially over higher passes. |