Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Madison River Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-10-10 @ 6:19 am -> 2026-10-10 @ 8:30 am |
| Onset: | 2026-10-10 @ 6:19 am |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 6:19 am |
| Headline: | Special Weather Statement issued October 10 at 5:19AM MDT by NWS Great Falls MT |
| Description: |
While most showers are not producing gusty winds, a few isolated showers will be capable of producing gusts in excess of 40 mph this morning. Gusty southwest winds will then develop later this morning for most areas, lasting through the afternoon ahead of a cold front arriving late today. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northern Park; Judith Gap; Livingston Area; Beartooth Foothills; Northern Sweet Grass; Southern Wheatland |
| Effective: | 2026-10-10 @ 1:53 am -> 2026-10-11 @ 2:00 am |
| Onset: | 2026-10-11 @ 1:00 am -> 2026-10-12 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-10 @ 1:53 am |
| Headline: | Winter Weather Advisory issued October 10 at 12:53AM MDT until October 12 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of wet snow and blowing snow expected. Total snow accumulations between 2 and 6 inches. Winds gusting as high as 40 mph. * WHERE...Portions of central and south central Montana. * WHEN...From midnight tonight to noon MDT Monday. * IMPACTS...Travel could be difficult, due to areas of slushy or snowy roads and poor visibility. This includes US-191 from Big Timber to Judith Gap, I-90 from Big Timber to Livingston, and over Bozeman Pass. * ADDITIONAL DETAILS...Tree and power line damage is possible which may result in power outages. |
| Alert: | Winter Storm Warning |
| Area(s): | Absaroka/Beartooth Mountains; Crazy Mountains |
| Effective: | 2026-10-10 @ 1:53 am -> 2026-10-11 @ 2:00 am |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-10 @ 1:53 am |
| Headline: | Winter Storm Warning issued October 10 at 12:53AM MDT until October 12 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of heavy snow and blowing snow expected. Total snow accumulations between 10 and 18 inches, greatest above 8000 feet. Winds gusting as high as 35 mph. * WHERE...Absaroka/Beartooth Mountains and Crazy Mountains. * WHEN...From 6 PM this evening to noon MDT Monday. * IMPACTS...Recreation in the high country will be impacted by severe winter conditions. Travel into Cooke City will be impacted. |
| Alert: | Winter Storm Warning |
| Area(s): | Melville Foothills |
| Effective: | 2026-10-10 @ 1:53 am -> 2026-10-11 @ 2:00 am |
| Onset: | 2026-10-11 @ 1:00 am -> 2026-10-12 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-10 @ 1:53 am |
| Headline: | Winter Storm Warning issued October 10 at 12:53AM MDT until October 12 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of heavy wet snow and blowing snwo expected. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 35 mph. * WHERE...Melville Foothills. * WHEN...From midnight tonight to noon MDT Monday. * IMPACTS...Travel could be very difficult on local roads and US-191 in the Melville vicinity. The hazardous conditions will impact the Monday morning commute. * ADDITIONAL DETAILS...Tree and power line damage is possible which may result in power outages. |
| Alert: | Winter Storm Warning |
| Area(s): | Southern Rocky Mountain Front; Southern High Plains; Upper Blackfoot and MacDonald Pass; Gates of the Mountains |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 1:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Storm Warning issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches, with the exception of the Lincoln valley where up to 7 inches is expected. Winds gusting as high as 45 mph. * WHERE...Gates of the Mountains, Upper Blackfoot and MacDonald Pass, Southern High Plains, and Southern Rocky Mountain Front. * WHEN...From noon today to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Winter Storm Warning |
| Area(s): | Eastern Pondera and Eastern Teton; Cascade County below 5000ft; Judith Basin County and Judith Gap; Meagher County Valleys |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Storm Warning issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 11 inches. Winds gusting as high as 35 mph. * WHERE...Meagher County Valleys, Cascade County below 5000ft, Eastern Pondera and Eastern Teton, and Judith Basin County and Judith Gap. * WHEN...From 6 PM this evening to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Winter Storm Warning |
| Area(s): | Little Belt and Highwood Mountains; Snowy and Judith Mountains; Elkhorn and Boulder Mountains |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Storm Warning issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 6 and 14 inches. Winds gusting as high as 40 mph. * WHERE...Elkhorn and Boulder Mountains, Little Belt and Highwood Mountains, and Snowy and Judith Mountains. * WHEN...From 6 PM this evening to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Winter Weather Advisory |
| Area(s): | Helena Valley; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Weather Advisory issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations of between 2 to 5 inches across lower elevations, with 5 to 8 inches in the mountains. Locally higher amounts possible. Winds gusting as high as 40 mph. * WHERE...Portions of central and southwest Montana. * WHEN...From 6 PM this evening to 6 AM MDT Monday. * IMPACTS...Travel could be difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Winter Storm Warning |
| Area(s): | Big Belt, Bridger and Castle Mountains |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Storm Warning issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 6 and 13 inches. Winds gusting as high as 40 mph. * WHERE...Big Belt, Bridger and Castle Mountains. * WHEN...From 6 PM this evening to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Winter Weather Advisory |
| Area(s): | East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft |
| Effective: | 2026-10-10 @ 1:32 am -> 2026-10-10 @ 7:30 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-10 @ 1:32 am |
| Headline: | Winter Weather Advisory issued October 10 at 12:32AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations of between 3 to 5 inches across lower elevations, with 5 to 10 inches in the mountains. Locally higher amounts possible. Winds gusting as high as 40 mph. * WHERE...A portion of north central Montana. * WHEN...From 6 PM this evening to 6 AM MDT Monday. * IMPACTS...Travel could be difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. |
| Alert: | Wind Advisory |
| Area(s): | Flathead/Mission Valleys |
| Effective: | 2026-10-09 @ 12:38 pm -> 2026-10-10 @ 12:45 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-11 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-10-09 @ 12:38 pm |
| Headline: | Wind Advisory issued October 9 at 11:38AM MDT until October 11 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...For the Lake Wind Advisory, southwest winds 10 to 20 mph with gusts up to 35 mph expected. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 40 mph expected. Isolated higher gusts nearing 50 mph will be possible in west to east oriented gaps along Highway 35, including Lake Blaine * WHERE...Flathead/Mission Valleys. * WHEN...For the Lake Wind Advisory, until 9 PM MDT this evening. For the Wind Advisory, from 6 PM Saturday to 6 AM MDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong winds and rough waves on area lakes will create hazardous conditions for small craft. |
| Alert: | Winter Weather Advisory |
| Area(s): | West Glacier Region |
| Effective: | 2026-10-09 @ 12:35 pm -> 2026-10-10 @ 12:45 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-10-09 @ 12:35 pm |
| Headline: | Winter Weather Advisory issued October 9 at 11:35AM MDT until October 12 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 1 and 3 inches, with higher amounts above valley floors and in Glacier National Park. Winds gusting as high as 45 mph. * WHERE...Glacier National Park, Marias Pass, Essex, Polebridge, Bad Rock Canyon, and Highway 83 Bigfork to Swan Lake. * WHEN...From 6 PM Saturday to 6 AM MDT Monday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Prepare for difficult backcountry travel. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bitterroot/Sapphire Mountains; Potomac/Seeley Lake Region |
| Effective: | 2026-10-09 @ 12:35 pm -> 2026-10-10 @ 12:45 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-10-09 @ 12:35 pm |
| Headline: | Winter Weather Advisory issued October 9 at 11:35AM MDT until October 12 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches. Winds gusting as high as 40 mph. * WHERE...I-90 East Missoula to Bearmouth, Highway 83 Seeley Lake to Condon, Highway 200 Bonner to Greenough, Lolo Pass, and Highway 93 Sula to Lost Trail Pass. * WHEN...From 6 PM Saturday to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Prepare for difficult backcountry travel. |
| Alert: | Winter Storm Warning |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-10-09 @ 12:35 pm -> 2026-10-10 @ 12:45 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-12 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-10-09 @ 12:35 pm |
| Headline: | Winter Storm Warning issued October 9 at 11:35AM MDT until October 12 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 3 and 9 inches. Winds gusting as high as 45 mph. * WHERE...MacDonald Pass, Georgetown Lake, Highway 12 Garrison to Elliston, Butte, and Homestake Pass. * WHEN...From 6 PM Saturday to 6 AM MDT Monday. * IMPACTS...Travel could be very difficult. |
| Alert: | Winter Storm Watch |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-10-09 @ 12:35 pm -> 2026-10-09 @ 12:51 pm |
| Onset: | 2026-10-10 @ 7:00 pm -> 2026-10-11 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Past |
| Issued By: | NWS Missoula MT on 2026-10-09 @ 12:35 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. |
