Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Winter Storm Warning |
| Area(s): | Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-17 @ 1:00 am |
| Onset: | 2026-04-15 @ 7:00 pm -> 2026-04-16 @ 7:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Storm Warning issued April 15 at 2:20PM MDT until April 17 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches at lower elevations and mountain passes, with 10 to 15 inches in the mountains. Winds gusting as high as 50 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM this evening to midnight MDT Thursday Night. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northwest Beaverhead County |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 7:00 am |
| Onset: | 2026-04-15 @ 7:00 pm -> 2026-04-16 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Weather Advisory issued April 15 at 2:20PM MDT until April 16 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 5 inches near Big hole and Chief Joseph Passes. Winds gusting as high as 40 mph. * WHERE...Northwest Beaverhead County. * WHEN...From 6 PM this evening to 6 AM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | Madison River Valley |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 7:00 pm |
| Onset: | 2026-04-16 @ 1:00 am -> 2026-04-16 @ 7:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Weather Advisory issued April 15 at 2:20PM MDT until April 16 at 6:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Madison River Valley. * WHEN...From midnight tonight to 6 PM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult, especially Thursday morning. The hazardous conditions could impact the Thursday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Gallatin Valley |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 7:00 pm |
| Onset: | 2026-04-16 @ 1:00 am -> 2026-04-16 @ 7:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Weather Advisory issued April 15 at 2:20PM MDT until April 16 at 6:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches, highest on the south and east portions of the Bozeman valley. * WHERE...Gallatin Valley. * WHEN...From midnight tonight to 6 PM MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult, especially Thursday morning. The hazardous conditions could impact the Thursday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Rocky Mountain Front; Little Belt and Highwood Mountains; Big Belt, Bridger and Castle Mountains |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 1:00 pm |
| Onset: | 2026-04-15 @ 7:00 pm -> 2026-04-16 @ 7:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Weather Advisory issued April 15 at 2:20PM MDT until April 16 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches. Winds gusting as high as 35 mph. * WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and Highwood Mountains, and Southern Rocky Mountain Front. * WHEN...From 6 PM this evening to noon MDT Thursday. * IMPACTS...Slushy snow covered roads may make travel difficult. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | East Glacier Park Region |
| Effective: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 1:00 pm |
| Onset: | 2026-04-15 @ 3:20 pm -> 2026-04-16 @ 7:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 3:20 pm |
| Headline: | Winter Weather Advisory issued April 15 at 2:20PM MDT until April 16 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow. Additional snow accumulations of 2 to 5 inches below 6,000 ft and 6 to 10 inches above 6,000 feet. Winds gusting as high as 45 mph. * WHERE...East Glacier Park Region Zone. * WHEN...Until noon MDT Thursday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Falling and or blowing snow may significantly reduce visibility. Those in the backcountry should ensure they are prepared for dangerous conditions. * ADDITIONAL DETAILS...Higher snow levels this afternoon will keep snow impacts above pass level. A cold front will help lower snow levels this evening, bringing minor snow accumulations at and below pass level. |
| Alert: | Wind Advisory |
| Area(s): | Livingston Area; Beartooth Foothills |
| Effective: | 2026-04-15 @ 3:15 pm -> 2026-04-16 @ 1:00 am |
| Onset: | 2026-04-15 @ 3:15 pm -> 2026-04-16 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-15 @ 3:15 pm |
| Headline: | Wind Advisory issued April 15 at 2:15PM MDT until April 16 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Southwest winds gusting to 60 mph. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until midnight MDT tonight. * IMPACTS...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 this evening. |
| Alert: | High Wind Warning |
| Area(s): | Madison River Valley; Beaverhead and Western Madison below 6000ft |
| Effective: | 2026-04-15 @ 2:10 pm -> 2026-04-15 @ 10:00 pm |
| Onset: | 2026-04-15 @ 2:10 pm -> 2026-04-15 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-15 @ 2:10 pm |
| Headline: | High Wind Warning issued April 15 at 1:10PM MDT until April 15 at 9:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...South to southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...The Madison and Beaverhead River Valleys. * WHEN...Until 9 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Peak winds will generally occur during the afternoon and early evening hours or beneath any shower activity. |
| Alert: | Winter Weather Advisory |
| Area(s): | Red Lodge Foothills; Paradise Valley; Livingston Area; Beartooth Foothills |
| Effective: | 2026-04-15 @ 2:00 pm -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 1:00 am -> 2026-04-16 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-15 @ 2:00 pm |
| Headline: | Winter Weather Advisory issued April 15 at 1:00PM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 1 and 3 inches. Winds gusting as high as 40 mph. * WHERE...Beartooth Foothills, Livingston Area, Paradise Valley, and Red Lodge Foothills. * WHEN...From midnight tonight to 6 AM MDT Friday. * IMPACTS...Falling snow and breezy winds may lead to visibility reductions due to blowing snow. The hazardous conditions will impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Snow accumulations will be elevation dependent with higher elevation locations receiving the heaviest snowfall. |
| Alert: | Winter Weather Advisory |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-04-15 @ 2:00 pm -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 10:00 am -> 2026-04-16 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-15 @ 2:00 pm |
| Headline: | Winter Weather Advisory issued April 15 at 1:00PM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 6 and 12 inches. Winds gusting as high as 35 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From 9 AM Thursday to 6 AM MDT Friday. * IMPACTS...Travel could be very difficult on Highway 14. Blowing snow could significantly reduce visibility. The hazardous conditions will impact the Thursday morning and evening commutes. |
| Alert: | Winter Storm Warning |
| Area(s): | Absaroka/Beartooth Mountains; Crazy Mountains |
| Effective: | 2026-04-15 @ 2:00 pm -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-15 @ 2:00 pm -> 2026-04-16 @ 2:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-15 @ 2:00 pm |
| Headline: | Winter Storm Warning issued April 15 at 1:00PM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations 8 to 14 inches. Winds gusting as high as 55 mph. * WHERE...Absaroka/Beartooth Mountains and Crazy Mountains. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Recreation in the high country will be impacted by heavy accumulating snow. * ADDITIONAL DETAILS...Snow totals in excess of 18 inches over the highest elevations. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Big Horn; Sheridan Foothills |
| Effective: | 2026-04-15 @ 2:00 pm -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 1:00 pm -> 2026-04-16 @ 2:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-15 @ 2:00 pm |
| Headline: | Winter Weather Advisory issued April 15 at 1:00PM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations up to three inches. Winds gusting as high as 40 mph. * WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan Foothills. * WHEN...From noon Thursday to 6 AM MDT Friday. * IMPACTS...Falling snow and breezy winds may lead to visibility reductions due to blowing snow. The hazardous conditions will impact the Thursday evening commute. * ADDITIONAL DETAILS...The greatest impacts for Southern Bighorn County will be on I-90 near Aberdeen Hill and the Wolf Mountains. |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone; Southwest Phillips |
| Effective: | 2026-04-15 @ 5:18 am -> 2026-04-16 @ 10:00 pm |
| Onset: | 2026-04-16 @ 10:00 am -> 2026-04-16 @ 2:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-04-15 @ 5:18 am |
| Headline: | Lake Wind Advisory issued April 15 at 4:18AM MDT until April 16 at 9:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Northwest winds 15 to 25 mph with gusts up to 35 mph expected. * WHERE...Fort Peck Lake. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Strong lake winds could produce rough waves which can overturn or swamp small craft. |
| Alert: | Winter Weather Advisory |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-04-14 @ 12:53 pm -> 2026-04-16 @ 10:00 am |
| Onset: | 2026-04-15 @ 7:00 pm -> 2026-04-16 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-14 @ 12:53 pm |
| Headline: | Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 1 to 3 inches, with 3 to 7 inches expected above 7,000 feet. Winds gusting as high as 35 mph. * WHERE...Highway 12 Garrison to Elliston, Georgetown Lake, MacDonald Pass, Butte, and Homestake Pass. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * 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 Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...An elevated risk exists for snow squalls to produce poor visibility and gusty winds as the front arrives Wednesday evening. |
| Alert: | Winter Weather Advisory |
| Area(s): | Potomac/Seeley Lake Region |
| Effective: | 2026-04-14 @ 12:53 pm -> 2026-04-16 @ 10:00 am |
| Onset: | 2026-04-15 @ 7:00 pm -> 2026-04-16 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-14 @ 12:53 pm |
| Headline: | Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations up to two inches, with 6 to 14 inches above 6,000 feet in the Swan and Mission Mountains. * WHERE...Highway 200 Bonner to Greenough, I-90 East Missoula to Bearmouth, and Highway 83 Seeley Lake to Condon. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. The hazardous conditions could impact the Thursday morning commute, especially over higher passes. |
| Alert: | Winter Weather Advisory |
| Area(s): | West Glacier Region |
| Effective: | 2026-04-14 @ 12:53 pm -> 2026-04-16 @ 10:00 am |
| Onset: | 2026-04-15 @ 1:00 am -> 2026-04-16 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-14 @ 12:53 pm |
| Headline: | Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 5 to 10 inches from Essex to Marias Pass and 12 to 20 inches above 6,000 feet. Total snow accumulations of 1 to 5 inches in valley locations. * WHERE...Polebridge, Essex, Glacier National Park, Marias Pass, Highway 83 Bigfork to Swan Lake, and Bad Rock Canyon. * WHEN...From midnight tonight to 9 AM MDT Thursday. * 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 Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Valley locations will see rain changeover to snow Wednesday evening into Thursday morning as the cold front arrives. Roadways will become slushy Wednesday afternoon as temperatures warm near freezing at Marias Pass on Highway 2. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bitterroot/Sapphire Mountains |
| Effective: | 2026-04-14 @ 12:53 pm -> 2026-04-16 @ 10:00 am |
| Onset: | 2026-04-15 @ 4:00 pm -> 2026-04-16 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-14 @ 12:53 pm |
| Headline: | Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations between 4 and 8 inches for Lolo and Lost Trail Passes, with 7 to 14 inches above 6,000 feet in the higher terrain. * WHERE...Highway 93 Sula to Lost Trail Pass and Lolo Pass. * WHEN...From 3 PM Wednesday to 9 AM MDT Thursday. * 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 Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...An elevated risk exists for snow squalls to produce poor visibility and gusty winds as the front arrives late Wednesday afternoon into the evening. |
| Alert: | Winter Weather Advisory |
| Area(s): | Lower Clark Fork Region |
| Effective: | 2026-04-14 @ 12:53 pm -> 2026-04-16 @ 10:00 am |
| Onset: | 2026-04-15 @ 1:00 am -> 2026-04-16 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-14 @ 12:53 pm |
| Headline: | Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 6 to 12 inches for Lookout Pass and the higher terrain. Total snow accumulations of up to 2 inches in lower elevation valley areas. * WHERE...Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, and Evaro Hill. * WHEN...From midnight tonight to 9 AM MDT Thursday. * 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 Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Valley locations will see rain changeover to snow Wednesday evening into Thursday morning as the cold front arrives. Roadways will become slushy Wednesday afternoon as temperatures warm near freezing at Lookout Pass on Interstate 90. |