Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Freezing Fog Advisory |
| Area(s): | Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft |
| Effective: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 10:00 am |
| Onset: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-30 @ 2:56 am |
| Headline: | Freezing Fog Advisory issued November 30 at 1:56AM MST until November 30 at 9:00AM MST by NWS Great Falls MT |
| Description: |
* WHAT...Visibility less than one mile in freezing fog. * WHERE...The Interstate 15 Corridor north of Power, Eastern Toole and Liberty Counties, Western and Central Chouteau County, and Cascade County below 5000ft. * WHEN...Until 9 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...A light glaze of ice from the freezing fog will make for slick travel this morning. |
| Alert: | Freezing Fog Advisory |
| Area(s): | Hill County |
| Effective: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 10:00 am |
| Onset: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-30 @ 2:56 am |
| Headline: | Freezing Fog Advisory issued November 30 at 1:56AM MST until November 30 at 9:00AM MST by NWS Great Falls MT |
| Description: |
* WHAT...For the Freezing Fog Advisory, visibility less than one mile in freezing fog. For the Cold Weather Advisory, very cold wind chills as low as 35 below. * WHERE...Hill County. * WHEN...For the Freezing Fog Advisory, until 9 AM MST this morning. For the Cold Weather Advisory, until 10 AM MST Monday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...A light glaze of ice from the freezing fog will make for slick travel this morning. |
| Alert: | Cold Weather Advisory |
| Area(s): | Hill County |
| Effective: | 2025-11-30 @ 2:56 am -> 2025-12-01 @ 11:00 am |
| Onset: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-30 @ 2:56 am |
| Headline: | Cold Weather Advisory issued November 30 at 1:56AM MST until December 1 at 10:00AM MST by NWS Great Falls MT |
| Description: |
* WHAT...For the Freezing Fog Advisory, visibility less than one mile in freezing fog. For the Cold Weather Advisory, very cold wind chills as low as 35 below. * WHERE...Hill County. * WHEN...For the Freezing Fog Advisory, until 9 AM MST this morning. For the Cold Weather Advisory, until 10 AM MST Monday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...A light glaze of ice from the freezing fog will make for slick travel this morning. |
| Alert: | Cold Weather Advisory |
| Area(s): | Northern Blaine County |
| Effective: | 2025-11-30 @ 2:56 am -> 2025-12-01 @ 11:00 am |
| Onset: | 2025-11-30 @ 2:56 am -> 2025-11-30 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2025-11-30 @ 2:56 am |
| Headline: | Cold Weather Advisory issued November 30 at 1:56AM MST until December 1 at 10:00AM MST by NWS Great Falls MT |
| Description: |
* WHAT...Very cold wind chills of 25 to 35 below zero expected. * WHERE...Northern Blaine County. * WHEN...Until 10 AM MST Monday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...The coldest wind chills will occur tonight into Sunday morning and Sunday night into early Monday morning. |
| Alert: | Cold Weather Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Daniels; Sheridan; Western Roosevelt; Northern Phillips; Northern Valley; Eastern Roosevelt |
| Effective: | 2025-11-29 @ 1:29 pm -> 2025-12-01 @ 11:00 am |
| Onset: | 2025-11-29 @ 7:00 pm -> 2025-11-30 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2025-11-29 @ 1:29 pm |
| Headline: | Cold Weather Advisory issued November 29 at 12:29PM MST until December 1 at 10:00AM MST by NWS Glasgow MT |
| Description: |
* WHAT...Very cold wind chills as low as 30 below expected. * WHERE...Northern, Central and Southeast Phillips, Valley, Daniels, Roosevelt and Sheridan Counties. * WHEN...From 6 PM this evening to 10 AM MST Monday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...The coldest wind chills will be tonight and Sunday night, with limited recovery Sunday afternoon. |