Yellowstone National Park, Wyoming

Regional Weather Alerts


     
Alert: Dense Fog Advisory
Area(s): Musselshell; Treasure; Northern Stillwater; Red Lodge Foothills; Northern Big Horn; Southern Big Horn; Northern Carbon; Northeastern Yellowstone; Southwestern Yellowstone
Effective: 2026-11-01 @ 12:44 pm -> 2026-11-01 @ 3:00 pm
Onset: 2026-11-01 @ 12:44 pm -> 2026-11-01 @ 3:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2026-11-01 @ 12:44 pm
Headline: Dense Fog Advisory issued November 1 at 11:44AM MST until November 1 at 2:00PM MST by NWS Billings MT
Description: * WHAT...Pockets of dense fog with visibility down to one quarter
 mile or less at times.
* WHERE...Portions of central and south central Montana.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Some roadways or bridges could be frost or ice
 covered and slippery.
Alert: Winter Weather Advisory
Area(s): Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains
Effective: 2026-11-01 @ 11:40 am -> 2026-11-02 @ 11:45 am
Onset: 2026-11-02 @ 12:00 am -> 2026-11-02 @ 9:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2026-11-01 @ 11:40 am
Headline: Winter Weather Advisory issued November 1 at 10:40AM MST until November 2 at 8:00PM MST by NWS Billings MT
Description: * WHAT...Moderate to heavy snow expected. Total snow accumulations up
 to 11 inches. Winds gusting as high as 50 mph.
* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
 Northeast Bighorn Mountains.
* WHEN...From 11 PM this evening to 8 PM MST Monday.
* IMPACTS...Snow and blowing snow will make back country recreation
 and travel along Highway 14 through the Bighorn Mountains very
 difficult. Visibilities may drop below 1/4 mile due to falling and
 blowing snow.
* ADDITIONAL DETAILS...The heaviest snowfall is expected Monday
 morning.
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