Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Cold Weather Advisory
Area(s): Central and Southern Valley; Daniels; Sheridan; Western Roosevelt; Northern Valley; Eastern Roosevelt
Effective: 2025-12-06 @ 2:59 pm -> 2025-12-07 @ 9:00 am
Onset: 2025-12-06 @ 9:00 pm -> 2025-12-07 @ 6:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-12-06 @ 2:59 pm
Headline: Cold Weather Advisory issued December 6 at 1:59PM MST until December 7 at 8:00AM MST by NWS Glasgow MT
Description: * WHAT...Very cold wind chills as low as 30 below expected.

* WHERE...Central and Southern Valley, Daniels, Eastern Roosevelt,
Northern Valley, Sheridan, and Western Roosevelt Counties.

* WHEN...From 8 PM this evening to 8 AM MST Sunday.

* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.

Alert: Winter Storm Warning
Area(s): Absaroka/Beartooth Mountains; Crazy Mountains
Effective: 2025-12-06 @ 2:46 pm -> 2025-12-07 @ 1:00 am
Onset: 2025-12-06 @ 2:46 pm -> 2025-12-07 @ 1:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-06 @ 2:46 pm
Headline: Winter Storm Warning issued December 6 at 1:46PM MST until December 7 at 12:00AM MST by NWS Billings MT
Description: * WHAT...Heavy snow occurring. Additional snow accumulations of 3 to
6 inches. Winds gusting as high as 50 mph in exposed areas.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until midnight MST tonight.

* IMPACTS...Mountain recreation will be impacted by heavy
accumulating snow and blowing snow.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
northwest facing slopes, including the mountains near Cooke City.
The mountains around Red Lodge will see much less additional
snowfall, 0 to 3 inches.

Alert: Winter Weather Advisory
Area(s): East Glacier Park Region; Southern Rocky Mountain Front
Effective: 2025-12-06 @ 2:41 pm -> 2025-12-06 @ 10:00 pm
Onset: 2025-12-06 @ 2:41 pm -> 2025-12-06 @ 10:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-06 @ 2:41 pm
Headline: Winter Weather Advisory issued December 6 at 1:41PM MST until December 6 at 9:00PM MST by NWS Great Falls MT
Description: * WHAT...Snow. Additional snow accumulations up to 4 inches. Winds
gusting as high as 35 mph.

* WHERE...The Continental Divide along the Rocky Mountain Front.

* WHEN...Until 9 PM MST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely be slick and hazardous.

Alert: Winter Weather Advisory
Area(s): Gallatin and Madison County Mountains and Centennial Mountains
Effective: 2025-12-06 @ 2:41 pm -> 2025-12-06 @ 10:00 pm
Onset: 2025-12-06 @ 2:41 pm -> 2025-12-06 @ 10:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-06 @ 2:41 pm
Headline: Winter Weather Advisory issued December 6 at 1:41PM MST until December 6 at 9:00PM MST by NWS Great Falls MT
Description: * WHAT...Periods of snow through this evening. Additional snow
accumulations up to two inches.

* WHERE...Gallatin and Madison County Mountains and Centennial
Mountains.

* WHEN...Until 9 PM MST this evening.

* IMPACTS...Plan on slippery road conditions.