Glacier National Park, Montana
Regional Weather Alerts
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-04-01 @ 10:23 am -> 2026-04-03 @ 1:00 am |
| Onset: | 2026-04-01 @ 10:23 am -> 2026-04-02 @ 6:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-04-01 @ 10:23 am |
| Headline: | Lake Wind Advisory issued April 1 at 9:23AM MDT until April 3 at 12:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...East winds 15 to 25 mph with gusts up to 35 mph at times. * WHERE...Fort Peck Lake * WHEN...Until midnight MDT Thursday Night. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Expect wave heights as high as 4 feet. |
| Alert: | Winter Storm Watch |
| Area(s): | Southern Rosebud |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-04 @ 7:00 am |
| Onset: | 2026-04-03 @ 1:00 am -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 4 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...For the Winter Weather Advisory, precipitation has ended. Roads may be slick in spots. For the Winter Storm Watch, periods of heavy snow. Total snow accumulations between 4 and 8 inches possible. Winds could gust as high as 30 mph. * WHERE...Southern Rosebud. * WHEN...From late Thursday night through late Friday night. * IMPACTS...For the Winter Storm Watch, difficult travel conditions due to snow, poor visibility and some blowing snow. Cool, wet and windy conditions will be hazardous for young livestock. |
| Alert: | Winter Storm Watch |
| Area(s): | Custer; Fallon; Powder River; Carter |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-04 @ 7:00 am |
| Onset: | 2026-04-03 @ 1:00 am -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 4 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of heavy snow. Total snow accumulations between 5 and 8 inches possible. Winds could gust as high as 30 mph. * WHERE...Carter, Custer, Fallon, and Powder River. * WHEN...From late Thursday night through late Friday night. * IMPACTS...Travel could be very difficult due to snow, areas of blowing snow and poor visibility. This includes Highway 12 from Miles City to Baker, and US-212 from Broadus to Alzada. Cool, wet and windy conditions will be hazardous for young livestock. * ADDITIONAL DETAILS...The heaviest snow is expected Thursday night into Friday morning. |
| Alert: | Winter Storm Watch |
| Area(s): | Bighorn Canyon; Sheridan Foothills |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-04 @ 1:00 am |
| Onset: | 2026-04-02 @ 10:00 pm -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 4 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of heavy snow. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 45 mph. * WHERE...In Montana, Bighorn Canyon. In Wyoming, Sheridan Foothills. * WHEN...From Thursday evening through Friday evening. * IMPACTS...Travel could be very difficult on I-90 from Aberdeen Hill to Sheridan and Piney Creek, due to snow, areas of blowing snow and poor visibility. Cool, wet and windy conditions will be hazardous for young livestock. * ADDITIONAL DETAILS...Rain showers Thursday afternoon and evening will change to snow Thursday night. |
| Alert: | Winter Storm Watch |
| Area(s): | Southern Big Horn |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-04 @ 1:00 am |
| Onset: | 2026-04-02 @ 10:00 pm -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 4 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...For the Winter Weather Advisory, precipitation has ended. Roads may be slick in spots. For the Winter Storm Watch, periods of heavy snow. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 45 mph. * WHERE...Southern Big Horn. * WHEN...From Thursday evening through Friday evening. * IMPACTS...For the Winter Storm Watch, difficult travel conditions due to snow, poor visibility and some blowing snow. Cool, wet and windy conditions will be hazardous for young livestock. |
| Alert: | Winter Storm Watch |
| Area(s): | Treasure; Northern Rosebud; Northern Big Horn; Northeastern Yellowstone; Southwestern Yellowstone |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-03 @ 7:00 pm |
| Onset: | 2026-04-02 @ 7:00 pm -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 3 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Periods of heavy snow. Total snow accumulations between 3 and 7 inches possible, greatest over the hills south of the Yellowstone River. * WHERE...Northeastern Yellowstone, Northern Big Horn, Southwestern Yellowstone, Treasure, and Northern Rosebud. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...Travel could be very difficult due to snow, areas of blowing snow and poor visibility. This includes I-94 from Custer to Hysham and Forsyth. Cool, wet and breezy conditions will be hazardous for young livestock. * ADDITIONAL DETAILS...The heaviest snow is expected Thursday night into Friday morning. |
| Alert: | Winter Storm Watch |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-03 @ 7:00 pm |
| Onset: | 2026-04-02 @ 7:00 pm -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 3 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Heavy snow accumulations of 12 to 20 inches possible. Winds could gust as high as 40 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...Travel on Highway 14 through Burgess Junction could become nearly impossible, due to snow, blowing and drifting snow, and poor visibility. Recreation in the high country will be difficult and hazardous. * ADDITIONAL DETAILS...The heaviest snow is expected Thursday night through midday Friday. |
| Alert: | Winter Storm Watch |
| Area(s): | Absaroka/Beartooth Mountains; Crazy Mountains |
| Effective: | 2026-04-01 @ 9:54 am -> 2026-04-03 @ 7:00 pm |
| Onset: | 2026-04-02 @ 1:00 pm -> 2026-04-02 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-04-01 @ 9:54 am |
| Headline: | Winter Storm Watch issued April 1 at 8:54AM MDT until April 3 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Heavy snow accumulations of 12 to 18 inches possible. Winds could gust as high as 40 mph. * WHERE...Absaroka/Beartooth Mountains and Crazy Mountains. * WHEN...From Thursday afternoon through Friday afternoon. * IMPACTS...Recreation in the high country will be difficult and hazardous. * ADDITIONAL DETAILS...The heaviest snow is expected Thursday night and Friday morning. |
| Alert: | Winter Storm Watch |
| Area(s): | Dawson; Prairie; Wibaux |
| Effective: | 2026-04-01 @ 3:10 am -> 2026-04-04 @ 7:00 am |
| Onset: | 2026-04-02 @ 7:00 pm -> 2026-04-01 @ 5:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Glasgow MT on 2026-04-01 @ 3:10 am |
| Headline: | Winter Storm Watch issued April 1 at 2:10AM MDT until April 4 at 6:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 3 and 6 inches possible. * WHERE...Dawson, Prairie, and Wibaux Counties. * WHEN...From Thursday evening through late Friday night. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Snowy and Judith Mountains |
| Effective: | 2026-03-31 @ 11:48 pm -> 2026-04-03 @ 1:00 pm |
| Onset: | 2026-04-02 @ 4:00 pm -> 2026-04-01 @ 7:30 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-03-31 @ 11:48 pm |
| Headline: | Winter Weather Advisory issued March 31 at 10:48PM MDT until April 3 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 1 and 4 inches at lower elevations, with amounts approaching 6 inches at higher elevations. * WHERE...Snowy and Judith Mountains, Cascade County below 5000ft, Fergus County below 4500ft, and Judith Basin County and Judith Gap. * WHEN...From 3 PM Thursday to noon MDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday evening and Friday morning commutes. * ADDITIONAL DETAILS...The wet variety of snow may pose snow load impacts to infrastructure where snow is most persistent Thursday night. Higher snow amounts approaching a foot are forecast for the Snowies. |
| Alert: | Winter Weather Advisory |
| Area(s): | Big Belt, Bridger and Castle Mountains |
| Effective: | 2026-03-31 @ 11:48 pm -> 2026-04-03 @ 1:00 pm |
| Onset: | 2026-04-02 @ 10:00 am -> 2026-04-01 @ 7:30 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-03-31 @ 11:48 pm |
| Headline: | Winter Weather Advisory issued March 31 at 10:48PM MDT until April 3 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 4 and 8 inches at and below pass level, with higher amounts above pass level. Winds gusting as high as 35 mph. * WHERE...Big Belt, Bridger and Castle Mountains. * WHEN...From 9 AM Thursday to noon MDT Friday. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. * ADDITIONAL DETAILS...The wet variety of snow may pose snow load impacts to infrastructure. |
| Alert: | Winter Storm Warning |
| Area(s): | Little Belt and Highwood Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-03-31 @ 11:48 pm -> 2026-04-03 @ 1:00 pm |
| Onset: | 2026-04-02 @ 10:00 am -> 2026-04-01 @ 7:30 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-03-31 @ 11:48 pm |
| Headline: | Winter Storm Warning issued March 31 at 10:48PM MDT until April 3 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 7 and 11 inches at and below pass level with higher amounts above pass level. * WHERE...Little Belt and Highwood Mountains and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 9 AM Thursday to noon MDT Friday. * 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. * ADDITIONAL DETAILS...The heavy and wet variety of snow may pose snow load impacts to infrastructure. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County |
| Effective: | 2026-03-31 @ 11:48 pm -> 2026-04-03 @ 7:00 am |
| Onset: | 2026-04-02 @ 7:00 am -> 2026-04-01 @ 7:30 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-03-31 @ 11:48 pm |
| Headline: | Winter Weather Advisory issued March 31 at 10:48PM MDT until April 3 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 and 8 inches. Winds gusting as high as 35 mph. * WHERE...Elkhorn and Boulder Mountains, Upper Blackfoot and MacDonald Pass, Southern Rocky Mountain Front, and Northwest Beaverhead County. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. * ADDITIONAL DETAILS...The wet variety of snow may pose snow load impacts to infrastructure. |
| Alert: | Winter Weather Advisory |
| Area(s): | East Glacier Park Region |
| Effective: | 2026-03-31 @ 11:48 pm -> 2026-04-03 @ 7:00 am |
| Onset: | 2026-04-02 @ 7:00 am -> 2026-04-01 @ 7:30 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-03-31 @ 11:48 pm |
| Headline: | Winter Weather Advisory issued March 31 at 10:48PM MDT until April 3 at 6:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 4 and 8 inches. * WHERE...East Glacier Park Region Zone. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...The wet variety of snow may pose snow load impacts to infrastructure. |
| Alert: | Winter Storm Watch |
| Area(s): | Bitterroot/Sapphire Mountains; Butte/Blackfoot Region; Potomac/Seeley Lake Region |
| Effective: | 2026-03-31 @ 11:34 am -> 2026-04-03 @ 7:00 am |
| Onset: | 2026-04-02 @ 7:00 am -> 2026-04-01 @ 4:45 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2026-03-31 @ 11:34 am |
| Headline: | Winter Storm Watch issued March 31 at 10:34AM MDT until April 3 at 6:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Heavy snow possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations between 6 and 12 inches possible for terrain above 5500 feet, including MacDonald Pass, Homestake Pass, Lost Trail Pass and Lolo Pass. 2 to 6 inches possible down to 3000 feet, including Butte, Seeley Lake and Anaconda. Winds could gust as high as 35 mph. * WHERE...Butte, Highway 12 Garrison to Elliston, I-90 East Missoula to Bearmouth, Georgetown Lake, Highway 93 Sula to Lost Trail Pass, Highway 83 Seeley Lake to Condon, Lolo Pass, MacDonald Pass, Homestake Pass, and Highway 200 Bonner to Greenough. * WHEN...From Thursday morning through late Thursday night. * 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 Thursday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Heavy, wet snow may cause power outages and tree damage. |