Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Winter Weather Advisory
Area(s): Fallon; Powder River; Carter; Southern Rosebud; Southern Big Horn; Sheridan Foothills
Effective: 2025-11-27 @ 9:32 pm -> 2025-11-29 @ 12:00 pm
Onset: 2025-11-28 @ 6:00 am -> 2025-11-28 @ 9:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-11-27 @ 9:32 pm
Headline: Winter Weather Advisory issued November 27 at 8:32PM MST until November 29 at 11:00AM MST by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 1 and 3
inches with locally higher amounts in the hills and Wolf Mountains.
Winds gusting as high as 40 mph.

* WHERE...Portions of south central and southeast Montana and north
central Wyoming.

* WHEN...From 5 AM Friday to 11 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. Hazardous travel conditions
will impact the Friday evening commute.

* ADDITIONAL DETAILS...Gusty winds may continue blowing snow around
and reducing visibility after the snow stops falling.

Alert: Winter Weather Advisory
Area(s): Judith Gap; Southern Wheatland
Effective: 2025-11-27 @ 9:32 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-28 @ 12:00 am -> 2025-11-28 @ 9:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-11-27 @ 9:32 pm
Headline: Winter Weather Advisory issued November 27 at 8:32PM MST until November 29 at 5:00AM MST by NWS Billings MT
Description: * WHAT...Snow and blowing snow expected. Total snow accumulations
between 1 and 3 inches. Winds gusting as high as 45 mph.

* WHERE...Judith Gap and Southern Wheatland.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility on US-191 through Judith Gap.
Hazardous travel conditions will impact the Friday morning and
evening commutes.

* ADDITIONAL DETAILS...Gusty winds may continue blowing snow around
and reducing visibility after the snow stops falling.

Alert: Winter Weather Advisory
Area(s): Northern Stillwater; Golden Valley; Red Lodge Foothills; Northern Big Horn; Beartooth Foothills; Southeastern Carbon; Northern Sweet Grass; Bighorn Canyon; Northern Carbon; Melville Foothills; Southwestern Yellowstone
Effective: 2025-11-27 @ 9:32 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-28 @ 6:00 am -> 2025-11-28 @ 9:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-11-27 @ 9:32 pm
Headline: Winter Weather Advisory issued November 27 at 8:32PM MST until November 29 at 5:00AM MST by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 5
inches. Winds gusting as high as 35 mph.

* WHERE...Portions of central and south central Montana.

* WHEN...From 5 AM Friday to 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. Hazardous travel conditions
will impact the Friday evening commute.

* ADDITIONAL DETAILS...Gusty winds may continue blowing snow around
and reducing visibility after the snow stops falling.

Alert: Winter Weather Advisory
Area(s): Northern Park; Paradise Valley; Livingston Area
Effective: 2025-11-27 @ 9:32 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-28 @ 6:00 am -> 2025-11-28 @ 9:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-11-27 @ 9:32 pm
Headline: Winter Weather Advisory issued November 27 at 8:32PM MST until November 29 at 5:00AM MST by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 5
inches. Winds gusting as high as 35 mph.

* WHERE...Livingston Area, Northern Park, and Paradise Valley.

* WHEN...From 5 AM Friday to 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Hazardous travel
conditions will impact the Friday evening commute.

* ADDITIONAL DETAILS...Gusty winds may continue blowing snow around
and reducing visibility after the snow stops falling.

Alert: Winter Weather Advisory
Area(s): Musselshell; Treasure; Northern Rosebud; Custer; Northeastern Yellowstone
Effective: 2025-11-27 @ 9:32 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-28 @ 12:00 am -> 2025-11-28 @ 9:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-11-27 @ 9:32 pm
Headline: Winter Weather Advisory issued November 27 at 8:32PM MST until November 29 at 5:00AM MST by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 30 mph.

* WHERE...Musselshell, Northeastern Yellowstone, Treasure, Custer,
and Northern Rosebud.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Hazardous travel
conditions will impact the Friday morning and evening commutes.

* ADDITIONAL DETAILS...There may be a break in snowfall early Friday
morning.

Alert: Winter Storm Warning
Area(s): Hill County; Northern Blaine County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft
Effective: 2025-11-27 @ 8:30 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-27 @ 8:30 pm -> 2025-11-28 @ 7:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-11-27 @ 8:30 pm
Headline: Winter Storm Warning issued November 27 at 7:30PM MST until November 29 at 5:00AM MST by NWS Great Falls MT
Description: * WHAT...Heavy snow. Additional snow accumulations between 3 and 9
inches.

* WHERE...Bears Paw Mountains and Southern Blaine, Fergus County
below 4500ft, Hill County, and Northern Blaine County.

* WHEN...Until 5 AM MST Saturday.

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

* ADDITIONAL DETAILS...Blowing snow will create near whiteout
conditions at times on Friday.

Alert: Winter Weather Advisory
Area(s): Judith Basin County and Judith Gap; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Elkhorn and Boulder Mountains; Madison River Valley; Gallatin Valley
Effective: 2025-11-27 @ 8:30 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-28 @ 1:00 am -> 2025-11-28 @ 7:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-11-27 @ 8:30 pm
Headline: Winter Weather Advisory issued November 27 at 7:30PM MST until November 29 at 5:00AM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations between 3 and 5
inches. Winds gusting as high as 35 mph.

* WHERE...Portions of central, north central, and southwest Montana.

* WHEN...From midnight tonight to 5 AM MST Saturday.

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

* ADDITIONAL DETAILS...Blowing snow will reduce visibility at times.

Alert: Winter Storm Warning
Area(s): Eastern Toole and Liberty; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft
Effective: 2025-11-27 @ 8:30 pm -> 2025-11-29 @ 12:00 am
Onset: 2025-11-27 @ 8:30 pm -> 2025-11-28 @ 7:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-11-27 @ 8:30 pm
Headline: Winter Storm Warning issued November 27 at 7:30PM MST until November 28 at 11:00PM MST by NWS Great Falls MT
Description: * WHAT...Heavy snow. Total snow accumulations between 3 and 8 inches.

* WHERE...For the Choteau, Shelby, Fort Benton and Great Falls areas.

* WHEN...Until 11 PM MST Friday.

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

* ADDITIONAL DETAILS...Blowing snow will create near whiteout
conditions at times on Friday.

Alert: Winter Weather Advisory
Area(s): Upper Blackfoot and MacDonald Pass
Effective: 2025-11-27 @ 8:30 pm -> 2025-11-28 @ 6:00 pm
Onset: 2025-11-28 @ 1:00 am -> 2025-11-28 @ 7:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-11-27 @ 8:30 pm
Headline: Winter Weather Advisory issued November 27 at 7:30PM MST until November 28 at 5:00PM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations between 3 and 5
inches.

* WHERE...Upper Blackfoot and MacDonald Pass.

* WHEN...From midnight tonight to 5 PM MST Friday.

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

* ADDITIONAL DETAILS...Blowing snow will reduce visibility at times.

Alert: Winter Storm Warning
Area(s): East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera
Effective: 2025-11-27 @ 8:30 pm -> 2025-11-28 @ 6:00 pm
Onset: 2025-11-27 @ 8:30 pm -> 2025-11-28 @ 7:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-11-27 @ 8:30 pm
Headline: Winter Storm Warning issued November 27 at 7:30PM MST until November 28 at 5:00PM MST by NWS Great Falls MT
Description: * WHAT...Heavy snow. Total snow accumulations between 4 and 8 inches
at lower elevations and 8 to 12 inches in the mountains.

* WHERE...The Rocky Mountain Front and the Cut Bank area.

* WHEN...Until 5 PM MST Friday.

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

* ADDITIONAL DETAILS...Blowing snow will create near whiteout
conditions at times on Friday.

Alert: Dense Fog Advisory
Area(s): Central and Southeast Phillips; Daniels; Sheridan; Northern Phillips; Southwest Phillips; Northern Valley
Effective: 2025-11-27 @ 12:50 pm -> 2025-11-28 @ 5:00 am
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-28 @ 5:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:50 pm
Headline: Dense Fog Advisory issued November 27 at 11:50AM MST until November 28 at 4:00AM MST by NWS Glasgow MT
Description: * WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Central and Southeast Phillips, Daniels, Northern
Phillips, Northern Valley, Sheridan, and Southwest Phillips
Counties.

* WHEN...From 5 PM this afternoon to 4 AM MST Friday.

* IMPACTS...Low visibility could make driving conditions hazardous.

Alert: Dense Fog Advisory
Area(s): Western Roosevelt
Effective: 2025-11-27 @ 12:50 pm -> 2025-11-28 @ 5:00 am
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-28 @ 5:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:50 pm
Headline: Dense Fog Advisory issued November 27 at 11:50AM MST until November 28 at 4:00AM MST by NWS Glasgow MT
Description: * WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Western Roosevelt County.

* WHEN...From 5 PM this afternoon to 4 AM MST Friday.

* IMPACTS...Low visibility could make driving conditions hazardous.

Alert: Winter Weather Advisory
Area(s): Southern Clearwater Mountains; Kootenai/Cabinet Region; Lower Clark Fork Region; Missoula/Bitterroot Valleys; Bitterroot/Sapphire Mountains
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 6:00 pm
Onset: 2025-11-28 @ 12:00 am -> 2025-11-28 @ 12:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: Winter Weather Advisory issued November 27 at 11:45AM MST until November 28 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Snow expected. There is a likelihood of minor to moderate
winter weather impacts. Total snow accumulations of 1 to 3 inches
in the valleys and 4 to 10 inches in the higher terrain including
mountain passes.

* WHERE...In IDAHO, Southern Clearwater Mountains. In MONTANA,
Kootenai/Cabinet Region, Bitterroot/Sapphire Mountains, Lower
Clark Fork Region, and Missoula/Bitterroot Valleys.

* WHEN...From 11 PM MST /10 PM PST/ this evening to 5 PM MST /4 PM
PST/ Friday.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. For MODERATE winter weather
impacts, expect disruptions to normal activities. Hazardous
traveling conditions. Use extra caution while driving. Closures
and disruptions to infrastructure may occur. The hazardous
conditions could impact the Friday morning and evening commutes,
especially over higher passes.

Alert: Winter Storm Watch
Area(s): Flathead/Mission Valleys
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 3:00 pm
Onset: 2025-11-28 @ 12:00 am -> 2025-11-27 @ 1:00 pm
Severity: Severe
Certainty: Observed
Urgency: Past
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.
Description: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.

Alert: Winter Storm Watch
Area(s): Butte/Blackfoot Region; Potomac/Seeley Lake Region
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 3:00 pm
Onset: 2025-11-28 @ 12:00 am -> 2025-11-27 @ 1:00 pm
Severity: Severe
Certainty: Observed
Urgency: Past
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.
Description: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.

Alert: Winter Storm Watch
Area(s): West Glacier Region
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 3:00 pm
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-27 @ 1:00 pm
Severity: Severe
Certainty: Observed
Urgency: Past
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.
Description: The Winter Storm Watch has been replaced. Please see the latest information from NWS Missoula MT on this developing situation.

Alert: Winter Storm Warning
Area(s): West Glacier Region
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 3:00 pm
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-28 @ 12:45 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: Winter Storm Warning issued November 27 at 11:45AM MST until November 28 at 2:00PM MST by NWS Missoula MT
Description: * WHAT...Strong winds and heavy snow expected. There is a likelihood
of major winter weather impacts. Total snow accumulations between
1 to 4 inches in the valleys and 4 and 11 inches in the higher
terrain including Highway 2 from Essex to Marias Pass. Wind gusts
as high as 40 mph. Rapid drop in temperatures creating freeze-up
on road surfaces.

* WHERE...Marias Pass, Polebridge, Bad Rock Canyon, Glacier National
Park, Highway 83 Bigfork to Swan Lake, and Essex.

* WHEN...From 5 PM this afternoon to 2 PM MST Friday.

* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. The hazardous conditions could impact the Thursday
evening and Friday morning commutes, especially over higher passes.

Alert: Winter Storm Warning
Area(s): Butte/Blackfoot Region; Potomac/Seeley Lake Region
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 7:00 pm
Onset: 2025-11-28 @ 3:00 am -> 2025-11-28 @ 12:45 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: Winter Storm Warning issued November 27 at 11:45AM MST until November 28 at 6:00PM MST by NWS Missoula MT
Description: * WHAT...Moderate to heavy snow expected. There is a likelihood of
major winter weather impacts. Total snow accumulations between 1
and 6 inches. Wind gusts as high as 40 mph. Rapid drop in
temperatures creating freeze-up on road surfaces.

* WHERE...Georgetown Lake, Highway 200 Bonner to Greenough, Highway
83 Seeley Lake to Condon, MacDonald Pass, Homestake Pass, Butte,
I-90 East Missoula to Bearmouth, and Highway 12 Garrison to
Elliston.

* WHEN...From 2 AM to 6 PM MST Friday.

* IMPACTS...For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. The hazardous conditions could impact the Thursday
evening and Friday morning commutes, especially over higher passes.

Alert: Winter Weather Advisory
Area(s): Flathead/Mission Valleys
Effective: 2025-11-27 @ 12:45 pm -> 2025-11-28 @ 6:00 pm
Onset: 2025-11-27 @ 7:00 pm -> 2025-11-28 @ 12:45 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-11-27 @ 12:45 pm
Headline: Winter Weather Advisory issued November 27 at 11:45AM MST until November 28 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Snow expected. There is a likelihood of moderate winter
weather impacts. Total snow accumulations between 1 and 4 inches.
Wind gusts as high as 35 mph. Rapid drop in temperatures creating
freeze-up on road surfaces.

* WHERE...Polson, Flathead Valley, Mission Valley, and Flathead Lake.

* WHEN...From 6 PM this evening to 5 PM MST Friday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. Closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
morning and evening commutes, especially over higher passes.

Alert: Winter Storm Warning
Area(s): Central and Southeast Phillips; Central and Southern Valley; Garfield; McCone; Richland; Dawson; Northern Phillips; Southwest Phillips
Effective: 2025-11-27 @ 12:39 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-28 @ 6:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:39 pm
Headline: Winter Storm Warning issued November 27 at 11:39AM MST until November 29 at 5:00AM MST by NWS Glasgow MT
Description: * WHAT...Heavy snow expected. Total snow accumulations between 4 and
7 inches.

* WHERE...A portion of northeast Montana.

* WHEN...From 5 PM this afternoon to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Thursday evening and Friday morning commutes.

Alert: Winter Storm Warning
Area(s): Petroleum
Effective: 2025-11-27 @ 12:39 pm -> 2025-11-29 @ 6:00 am
Onset: 2025-11-27 @ 6:00 pm -> 2025-11-28 @ 6:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:39 pm
Headline: Winter Storm Warning issued November 27 at 11:39AM MST until November 29 at 5:00AM MST by NWS Glasgow MT
Description: * WHAT...Heavy snow expected. Total snow accumulations between 2 and
7 inches.

* WHERE...Petroleum County.

* WHEN...From 5 PM this afternoon to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Thursday evening and Friday morning commutes.

Alert: Winter Weather Advisory
Area(s): Western Roosevelt; Eastern Roosevelt
Effective: 2025-11-27 @ 12:39 pm -> 2025-11-29 @ 12:00 pm
Onset: 2025-11-28 @ 12:00 am -> 2025-11-28 @ 6:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:39 pm
Headline: Winter Weather Advisory issued November 27 at 11:39AM MST until November 29 at 11:00AM MST by NWS Glasgow MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.

* WHERE...Eastern Roosevelt and Western Roosevelt Counties.

* WHEN...From 11 PM this evening to 11 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday evening and Friday morning
commutes.

Alert: Winter Weather Advisory
Area(s): Daniels; Sheridan; Prairie; Wibaux; Northern Valley
Effective: 2025-11-27 @ 12:39 pm -> 2025-11-29 @ 12:00 pm
Onset: 2025-11-28 @ 12:00 am -> 2025-11-28 @ 6:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-11-27 @ 12:39 pm
Headline: Winter Weather Advisory issued November 27 at 11:39AM MST until November 29 at 11:00AM MST by NWS Glasgow MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.

* WHERE...Daniels, Northern Valley, Prairie, Sheridan, and Wibaux
Counties.

* WHEN...From 11 PM this evening to 11 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Friday morning and evening commutes.