Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Special Weather Statement
Area(s): Eastern Glacier, Western Toole, and Central Pondera; Eastern Pondera and Eastern Teton; Cascade County below 5000ft; Judith Basin County and Judith Gap
Effective: 2025-12-05 @ 9:27 pm
Onset: 2025-12-05 @ 9:27 pm -> 2025-12-06 @ 12:00 am
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 9:27 pm
Headline: Special Weather Statement issued December 5 at 8:27PM MST by NWS Great Falls MT
Description: A band of primarily light snow has developed across portions of
the plains this evening. While this band is forecast to shift
eastward later this evening and into the overnight, light
accumulations will be possible in areas along I-15 on the plains
and across the MT-200 corridor east of Great Falls into Judith
Basin County through the remainder of the evening. Those with
travel plans in these areas should be prepared for winter driving
conditions.

Alert: Winter Weather Advisory
Area(s): East Glacier Park Region; Southern Rocky Mountain Front
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 10:00 pm
Onset: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 7:15 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Weather Advisory issued December 5 at 5:18PM MST until December 6 at 9:00PM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations of 4 to 9 inches.
Isolated higher amounts. Winds gusting as high as 55 mph.

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

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Blowing snow could
significantly reduce visibility. Strong winds could cause tree
damage.

Alert: Winter Weather Advisory
Area(s): Eastern Toole and Liberty; Hill County; Northern Blaine County; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft; Snowy and Judith Mountains
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 12:00 pm
Onset: 2025-12-05 @ 8:00 pm -> 2025-12-06 @ 7:15 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Weather Advisory issued December 5 at 5:18PM MST until December 6 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations 1 to 4 inches at
lower elevations and up to 8 inches in the mountains.

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

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions.

Alert: Winter Weather Advisory
Area(s): Upper Blackfoot and MacDonald Pass
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 12:00 pm
Onset: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 7:15 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Weather Advisory issued December 5 at 5:18PM MST until December 6 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations between 3 and 7
inches, with higher amounts above pass level. Winds gusting as
high as 45 mph.

* WHERE...Upper Blackfoot and MacDonald Pass.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.

Alert: Winter Weather Advisory
Area(s): Elkhorn and Boulder Mountains
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 12:00 pm
Onset: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 7:15 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Weather Advisory issued December 5 at 5:18PM MST until December 6 at 11:00AM MST by NWS Great Falls MT
Description: * WHAT...Snow expected. Total snow accumulations between 3 and 8
inches. Winds gusting as high as 45 mph.

* WHERE...Elkhorn and Boulder Mountains.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.

Alert: Winter Storm Warning
Area(s): Little Belt and Highwood Mountains; Big Belt, Bridger and Castle Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 3:00 pm
Onset: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 7:15 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Storm Warning issued December 5 at 5:18PM MST until December 6 at 2:00PM MST by NWS Great Falls MT
Description: * WHAT...Heavy snow. Additional snow accumulations between 4 and 11
inches. Isolated higher amounts. Winds gusting as high as 45 mph.

* WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and
Highwood Mountains, and Gallatin and Madison County Mountains and
Centennial Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Tire chains may be required for some vehicles if
traveling through mountain passes. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.

* ADDITIONAL DETAILS...Significant travel impacts to the Friday
evening commute are possible for Bozeman Pass and along Highway
191 south of Bozeman.

Alert: Winter Storm Warning
Area(s): Northwest Beaverhead County
Effective: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 6:00 pm
Onset: 2025-12-05 @ 6:18 pm -> 2025-12-06 @ 7:15 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2025-12-05 @ 6:18 pm
Headline: Winter Storm Warning issued December 5 at 5:18PM MST until December 6 at 5:00PM MST by NWS Great Falls MT
Description: * WHAT...Heavy snow. Additional snow accumulations between 5 and 13
inches. Isolated higher amounts. Winds gusting as high as 50 mph.

* WHERE...Northwest Beaverhead County.

* WHEN...Until 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. Blowing snow could
significantly reduce visibility. Gusty winds could bring down tree
branches.

Alert: Winter Weather Advisory
Area(s): Flathead/Mission Valleys
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Weather Advisory issued December 5 at 4:02PM MST until December 5 at 11:00PM MST by NWS Missoula MT
Description: * WHAT...Wet snow. There is a likelihood of developing or ongoing
moderate winter weather impacts. Periods of heavy snow will
quickly accumulated and cause rapidly changing conditions.
Additional snow accumulations of 1 to 5 inches.

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

* WHEN...Until 11 PM MST this evening.

* 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
evening commute, especially over higher passes.

Alert: Winter Weather Advisory
Area(s): West Glacier Region
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 6:00 pm
Onset: 2025-12-05 @ 6:00 pm -> 2025-12-06 @ 5:15 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Weather Advisory issued December 5 at 4:02PM MST until December 6 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Snow expected. There is a likelihood of moderate to
isolated major winter weather impacts. Total snow accumulations 1
to 3 inches in the valleys and 5 to 8 inches in the higher terrain
including Marias Pass.

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

* WHEN...Until 5 PM MST Saturday.

* 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. For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.

Alert: Winter Storm Warning
Area(s): Potomac/Seeley Lake Region
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 6:00 pm
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 5:15 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Storm Warning issued December 5 at 4:02PM MST until December 6 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Heavy snow. There is a likelihood of developing or ongoing
major winter weather impacts to isolated extreme winter storm
impacts. Additional snow accumulations of 5 to 10 inches. Winds
gusting as high as 35 mph.

* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to
Condon, and I-90 East Missoula to Bearmouth.

* WHEN...Until 5 PM MST Saturday.

* 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. Widespread closures and disruptions to infrastructure
may occur. For EXTREME winter storm impacts, expect substantial
disruptions to normal activities. Extremely dangerous or
impossible traveling conditions. Travel in the impacted areas is
not advised. Extensive and widespread closures and disruptions to
infrastructure may occur. Life saving actions may be needed. The
hazardous conditions could impact the Friday evening commute,
especially over higher passes.

Alert: Winter Storm Warning
Area(s): Bitterroot/Sapphire Mountains
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 6:00 pm
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 5:15 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Storm Warning issued December 5 at 4:02PM MST until December 6 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Heavy snow expected. There is a likelihood of major winter
storm impacts. Total snow accumulations 1 to 5 inches in the
valleys and 8 to 15 inches in the higher terrain including Lolo
and Lost Trail Passes. Winds gusting as high as 40 mph on Friday.

* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.

* WHEN...Until 5 PM MST Saturday.

* 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. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes. Gusty winds could
bring down tree branches.

Alert: Winter Storm Warning
Area(s): Lower Clark Fork Region
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 6:00 pm
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 5:15 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Storm Warning issued December 5 at 4:02PM MST until December 6 at 5:00PM MST by NWS Missoula MT
Description: * WHAT...Heavy snow. There is a likelihood of developing or ongoing
major winter weather impacts to isolated extreme winter storm
impacts. Additional snow accumulations of 5 to 11 inches Taft to
Lookout Pass and 2 to 5 inches in the valleys. Winds gusting as
high as 35 mph.

* WHERE...Evaro Hill, Highway 200 Trout Creek to Heron, I-90 Lookout
Pass to Haugan, and Highway 200 Thompson Falls to Plains.

* WHEN...Until 5 PM MST Saturday.

* 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. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.

Alert: Winter Weather Advisory
Area(s): Kootenai/Cabinet Region
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Weather Advisory issued December 5 at 4:02PM MST until December 5 at 11:00PM MST by NWS Missoula MT
Description: * WHAT...Snow. There is a likelihood of developing or ongoing
moderate winter weather impacts. Periods of heavy snow will
quickly accumulated and cause rapidly changing conditions.
Additional snow accumulations of 1 to 5 inches.

* WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby,
Highway 93 Eureka to Whitefish, and Highway 56 Bull Lake Road.

* WHEN...Until 11 PM MST this evening.

* 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
evening commute, especially over higher passes.

Alert: Winter Weather Advisory
Area(s): Missoula/Bitterroot Valleys
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Weather Advisory issued December 5 at 4:02PM MST until December 5 at 11:00PM MST by NWS Missoula MT
Description: * WHAT...Wet snow. There is a likelihood of ongoing moderate winter
weather impacts. Periods of heavy snow will quickly accumulated
and cause rapidly changing conditions. Additional snow
accumulations of 1 to 5 inches. Gusty winds are also possible in
the Bitterroot Valley later in the evening.

* WHERE...Missoula and Bitterroot Valley.

* WHEN...Until 11 PM MST this evening.

* 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. For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.

Alert: Winter Weather Advisory
Area(s): Butte/Blackfoot Region
Effective: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Onset: 2025-12-05 @ 5:02 pm -> 2025-12-06 @ 12:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2025-12-05 @ 5:02 pm
Headline: Winter Weather Advisory issued December 5 at 4:02PM MST until December 5 at 11:00PM MST by NWS Missoula MT
Description: * WHAT...Snow. There is a likelihood of developing or ongoing
moderate to isolated major winter weather impacts. Additional snow
accumulations of 2 to 6 inches. Winds gusting as high as 40 mph.

* WHERE...Highway 12 Garrison to Elliston, MacDonald Pass, Butte,
Homestake Pass, and Georgetown Lake.

* WHEN...Until 11 PM MST this evening.

* 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. For MAJOR winter weather impacts, expect considerable
disruptions to normal activities. Dangerous or impossible
traveling conditions. Avoid travel in the impacted areas if
possible. Widespread closures and disruptions to infrastructure
may occur. The hazardous conditions could impact the Friday
evening commute, especially over higher passes.

* ADDITIONAL DETAILS...Rapidly changing conditions are expected
through the evening with periods of heavy snow.

Alert: Winter Storm Warning
Area(s): Absaroka/Beartooth Mountains; Crazy Mountains
Effective: 2025-12-05 @ 3:29 pm -> 2025-12-06 @ 3:00 pm
Onset: 2025-12-05 @ 3:29 pm -> 2025-12-06 @ 3:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-05 @ 3:29 pm
Headline: Winter Storm Warning issued December 5 at 2:29PM MST until December 6 at 2:00PM MST by NWS Billings MT
Description: * WHAT...Periods of moderate to heavy snowfall, strong winds, and
blowing snow. Additional snow accumulations between 6 and 14
inches. Winds gusting as high as 75 mph.

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

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Mountain recreation will be impacted by heavy
accumulating snow and blowing snow. Whiteout conditions are
expected at times.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
northwest facing slopes. The mountains around Red Lodge and Nye
will see much less snowfall, 2 to 6 inches.

Alert: Winter Weather Advisory
Area(s): Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains
Effective: 2025-12-05 @ 3:29 pm -> 2025-12-06 @ 3:00 pm
Onset: 2025-12-05 @ 3:29 pm -> 2025-12-06 @ 3:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-05 @ 3:29 pm
Headline: Winter Weather Advisory issued December 5 at 2:29PM MST until December 6 at 2:00PM MST by NWS Billings MT
Description: * WHAT...Periods of light to moderate snow and blowing snow.
Additional snow accumulations between 4 and 8 inches. Winds gusting
as high as 45 mph.

* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
Northeast Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
through Saturday morning. Outdoor recreation could be very
difficult. Whiteout conditions are expected at times due to snow
and blowing snow.

Alert: Winter Weather Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Daniels; Western Roosevelt; Petroleum; Garfield; McCone; Richland; Dawson; Prairie; Wibaux; Northern Phillips; Southwest Phillips; Northern Valley
Effective: 2025-12-05 @ 2:52 pm -> 2025-12-06 @ 1:00 pm
Onset: 2025-12-05 @ 9:00 pm -> 2025-12-06 @ 6:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2025-12-05 @ 2:52 pm
Headline: Winter Weather Advisory issued December 5 at 1:52PM MST until December 6 at 12:00PM MST by NWS Glasgow MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 4
inches.

* WHERE...A portion of northeast Montana.

* WHEN...From 8 PM this evening to noon MST Saturday.

* IMPACTS...Plan on slippery road conditions.

Alert: Wind Advisory
Area(s): Livingston Area
Effective: 2025-12-05 @ 2:19 pm -> 2025-12-06 @ 1:00 pm
Onset: 2025-12-05 @ 7:00 pm -> 2025-12-06 @ 1:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2025-12-05 @ 2:19 pm
Headline: Wind Advisory issued December 5 at 1:19PM MST until December 6 at 12:00PM MST by NWS Billings MT
Description: * WHAT...West to Southwest winds 35 to 45 mph with gusts up to 65 mph
expected.

* WHERE...Livingston Area.

* WHEN...From 6 PM this evening to noon MST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree limb
and power line damage is possible and may result in localized power
outages. Strong crosswinds will make travel difficult along
Interstate 90 from Livingston to Big Timber and roads along the
Beartooth Foothills.

* ADDITIONAL DETAILS...The strongest winds are expected from around
midnight through 8 am.