Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Gates of the Mountains; Helena Valley; Meagher County Valleys; Canyon Ferry Area; Gallatin Valley |
| Effective: | 2026-01-20 @ 10:23 am |
| Onset: | 2026-01-20 @ 10:23 am -> 2026-01-20 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-01-20 @ 10:23 am |
| Headline: | Special Weather Statement issued January 20 at 9:23AM MST by NWS Great Falls MT |
| Description: |
Areas of light snow or snow showers are developing across Central Montana and Southwestern Montana. Visibility will be reduced as low as one mile at times. Total snowfall accumulations up to one half inch are expected. Snow showers will decrease by early this afternoon. If traveling slow down, use caution, make sure your headlights are on, and be prepared for changing conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Rosebud; Southern Big Horn; Sheridan Foothills |
| Effective: | 2026-01-20 @ 7:26 am -> 2026-01-20 @ 6:00 pm |
| Onset: | 2026-01-20 @ 9:00 am -> 2026-01-20 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-01-20 @ 7:26 am |
| Headline: | Winter Weather Advisory issued January 20 at 6:26AM MST until January 20 at 5:00PM MST by NWS Billings MT |
| Description: |
* WHAT...Areas of snow and blowing snow expected. Total snow accumulations up to two inches, greatest over the hills and near the Bighorn and Pryor Mountains. Northwest winds gusting as high as 50 mph. * WHERE...In Montana, Southern Big Horn and Southern Rosebud. In Wyoming, Sheridan Foothills. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slick roads and poor visibility. This includes I-90 from Lodge Grass to Sheridan, and US-212 over Lame Deer Divide. Hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Worst travel conditions are expected to occur between 10 am and 3 pm. |
| Alert: | Winter Weather Advisory |
| Area(s): | Custer; Fallon; Powder River; Carter |
| Effective: | 2026-01-20 @ 7:26 am -> 2026-01-20 @ 9:00 pm |
| Onset: | 2026-01-20 @ 7:26 am -> 2026-01-20 @ 9:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-01-20 @ 7:26 am |
| Headline: | Winter Weather Advisory issued January 20 at 6:26AM MST until January 20 at 8:00PM MST by NWS Billings MT |
| Description: |
* WHAT...Areas of snow and blowing snow. Total snow accumulations up to two inches, greatest over the hills. Northwest winds gusting as high as 45 mph. * WHERE...Carter, Custer, Fallon, and Powder River. * WHEN...Until 8 PM MST this evening. * IMPACTS...Plan on slick roads and poor visibility. This includes US-12 between Miles City and Baker, and US-212 from Home Creek Divide to Alzada. Hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Most snow accumulation will occur during the day, but some light snow or flurries are expected to linger into the early evening. |
| Alert: | Special Weather Statement |
| Area(s): | Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Little Belt and Highwood Mountains; Snowy and Judith Mountains |
| Effective: | 2026-01-20 @ 6:46 am |
| Onset: | 2026-01-20 @ 6:46 am -> 2026-01-20 @ 12:00 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-01-20 @ 6:46 am |
| Headline: | Special Weather Statement issued January 20 at 5:46AM MST by NWS Great Falls MT |
| Description: |
An area of light snow or snow showers will develop across central Montana this morning with the most persistent activity near the Little Belt and Snowy mountains. Snow accumulation of 2 to 4 inches is possible across the higher elevations in the mountains with up to one inch in areas immediately north of the Little Belts and Snowies, including adjacent portions of Judith Basin and Fergus counties. Travelers along US-87 from Belt east to the Lewistown divide and on US-89 over Kings Hill should expect areas of reduced visibility this morning. Snow showers will decrease by early this afternoon. |
| Alert: | Winter Weather Advisory |
| Area(s): | McCone; Richland; Dawson; Prairie; Wibaux |
| Effective: | 2026-01-20 @ 5:36 am -> 2026-01-20 @ 6:00 pm |
| Onset: | 2026-01-20 @ 5:36 am -> 2026-01-20 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-01-20 @ 5:36 am |
| Headline: | Winter Weather Advisory issued January 20 at 4:36AM MST until January 20 at 5:00PM MST by NWS Glasgow MT |
| Description: |
* WHAT...Snow. Accumulations up one to three inches. Winds gusting as high as 35 mph with blowing snow. * WHERE...Dawson, McCone, Prairie, Richland, and Wibaux Counties. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slippery road conditions and lowering visibility. The hazardous conditions could impact the Tuesday morning and evening commutes. |