Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone; Southwest Phillips |
| Effective: | 2026-04-24 @ 2:50 am -> 2026-04-25 @ 2:00 pm |
| Onset: | 2026-04-24 @ 2:50 am -> 2026-04-24 @ 4:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-04-24 @ 2:50 am |
| Headline: | Lake Wind Advisory issued April 24 at 1:50AM MDT until April 25 at 1:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...West winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Fort Peck Lake. * WHEN...Until 1 PM MDT Saturday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. |
| Alert: | Winter Weather Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Daniels; Sheridan; Western Roosevelt; Garfield; McCone; Richland; Dawson; Prairie; Northern Phillips; Southwest Phillips; Northern Valley; Eastern Roosevelt |
| Effective: | 2026-04-24 @ 2:48 am -> 2026-04-25 @ 1:00 pm |
| Onset: | 2026-04-24 @ 4:00 am -> 2026-04-24 @ 4:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-04-24 @ 2:48 am |
| Headline: | Winter Weather Advisory issued April 24 at 1:48AM MDT until April 25 at 12:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Snow showers and patchy blowing snow expected. Total snow accumulations up to three inches. Winds gusting as high as 50 mph. Visibility as low as a quarter mile at times. * WHERE...A portion of northeast Montana. * WHEN...Until noon MDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning and evening commutes. Severe conditions for newborn livestock. |
| Alert: | Winter Weather Advisory |
| Area(s): | Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County; Ruby Mountains and Southern Beaverhead Mountains |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 24 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow. Additional snow accumulations between 1 and 4 inches. * WHERE...Elkhorn and Boulder Mountains, Upper Blackfoot and MacDonald Pass, Northwest Beaverhead County, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...Until noon MDT Friday. * IMPACTS...Plan on slippery road conditions. |
| Alert: | Winter Storm Warning |
| Area(s): | Bears Paw Mountains and Southern Blaine |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-25 @ 1:00 pm |
| Onset: | 2026-04-24 @ 4:00 am -> 2026-04-24 @ 3:15 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Storm Warning issued April 23 at 11:13PM MDT until April 25 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations up to 4 inches below 4000 feet and between 4 and 9 inches above 4000 feet. Winds gusting as high as 50 mph. * WHERE...Bears Paw Mountains and Southern Blaine. * WHEN...From 3 AM Friday to noon MDT Saturday. * IMPACTS...Expect difficult driving conditions due to slush or snow covered roadways. Falling and or blowing snow will significantly reduce visibility at times. Those with outdoor plans should be prepared for dangerous outdoor conditions. * ADDITIONAL DETAILS...The heavy, wet snow may cause isolated power outages and or tree damage. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-25 @ 1:00 pm |
| Onset: | 2026-04-24 @ 4:00 am -> 2026-04-24 @ 3:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 25 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. Winds gusting as high as 50 mph. * WHERE...Eastern Glacier, Western Toole, and Central Pondera Counties, and Northern High Plains. * WHEN...From 3 AM Friday to noon MDT Saturday. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. |
| Alert: | Winter Weather Advisory |
| Area(s): | Eastern Toole and Liberty; Hill County; Northern Blaine County |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-25 @ 1:00 pm |
| Onset: | 2026-04-24 @ 4:00 am -> 2026-04-24 @ 3:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 25 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations up to 3 inches. Winds gusting as high as 50 mph. * WHERE...Eastern Toole and Liberty Counties, Hill County, and Northern Blaine County. * WHEN...From 3 AM Friday to noon MDT Saturday. * IMPACTS...Plan on winter driving conditions. Gusty winds could bring down tree branches. Falling and or blowing snow may significantly reduce visibility at times. * ADDITIONAL DETAILS...Locally higher amounts of 6 to 8 inches are possible in the Sweetgrass Hills. |
| Alert: | Winter Weather Advisory |
| Area(s): | Little Belt and Highwood Mountains |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 24 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations up to 6 inches with locally higher amounts along the peaks. Winds gusting as high as 45 mph. * WHERE...Little Belt and Highwood Mountains. * WHEN...Until noon MDT Friday. * IMPACTS...Expect difficult driving conditions due to slush or snow covered roadways. Falling and or patchy blowing snow may significantly reduce visibility at times. Those with outdoor plans should be prepared for dangerous outdoor conditions. * ADDITIONAL DETAILS...The heavy, wet snow may cause isolated power outages and or tree damage. |
| Alert: | Winter Storm Warning |
| Area(s): | Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Storm Warning issued April 23 at 11:13PM MDT until April 24 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 3 and 6 inches, with isolated mountain peaks seeing 6 to 8 inches. Winds gusting as high as 40 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...Until noon MDT Friday. * IMPACTS...Expect difficult driving conditions due to slush or snow covered roadways. Falling and or blowing snow may significantly reduce visibility at times. Those with outdoor plans should be prepared for dangerous outdoor conditions. * ADDITIONAL DETAILS...The heavy, wet snow may cause isolated power outages and or tree damage. |
| Alert: | Winter Weather Advisory |
| Area(s): | Big Belt, Bridger and Castle Mountains |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 24 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow. Additional snow accumulations up to four inches. Winds gusting as high as 40 mph. * WHERE...Big Belt, Bridger and Castle Mountains. * WHEN...Until noon MDT Friday. * IMPACTS...Expect winter driving conditions due to slush or snow covered roadways. Those in the backcountry should ensure they are prepared for dangerous conditions. * ADDITIONAL DETAILS...The wet snow may cause isolated instances of power outages and or tree damage. |
| Alert: | Winter Weather Advisory |
| Area(s): | Missouri Headwaters; Madison River Valley; Gallatin Valley; Beaverhead and Western Madison below 6000ft |
| Effective: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-24 @ 12:13 am -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-04-24 @ 12:13 am |
| Headline: | Winter Weather Advisory issued April 23 at 11:13PM MDT until April 24 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...The Interstate 90 Corridor between Bozeman and Whitehall, and The Madison and Beaverhead River Valleys. * WHEN...Until noon MDT Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northern Park; Paradise Valley; Livingston Area |
| Effective: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-23 @ 9:05 pm |
| Headline: | Winter Weather Advisory issued April 23 at 8:05PM MDT until April 24 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow occurring. Additional snow accumulations between 1 and 3 inches. Locally higher amounts possible. Winds gusting as high as 30 mph. * WHERE...Livingston Area, Northern Park, and Paradise Valley. * WHEN...Until noon MDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, could become slick and hazardous tonight into Friday morning. The hazardous conditions will impact the Friday morning commute. * ADDITIONAL DETAILS...Snow showers this evening and could be intense at times with reduced visibility. |
| Alert: | Winter Weather Advisory |
| Area(s): | Red Lodge Foothills; Beartooth Foothills |
| Effective: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Onset: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-23 @ 9:05 pm |
| Headline: | Winter Weather Advisory issued April 23 at 8:05PM MDT until April 24 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow occurring. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as 30 mph. * WHERE...Beartooth Foothills and Red Lodge Foothills. * WHEN...Until 6 PM MDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous tonight into Friday morning. The hazardous conditions will impact the Friday morning commute. * ADDITIONAL DETAILS...The heaviest snowfall is expected this evening through early Friday morning. Additional snow showers are anticipated Friday afternoon. |
| Alert: | Winter Storm Warning |
| Area(s): | Absaroka/Beartooth Mountains |
| Effective: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Onset: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-23 @ 9:05 pm |
| Headline: | Winter Storm Warning issued April 23 at 8:05PM MDT until April 24 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow occurring. Additional snow accumulations between 3 and 7 inches. Locally higher amounts possible. Winds gusting as high as 35 mph. * WHERE...Absaroka/Beartooth Mountains. * WHEN...Until 6 PM MDT Friday. * IMPACTS...Recreation in the high country will be impacted by heavy accumulating snow. Expect periods of significantly reduced visibility due to snow and blowing snow. * ADDITIONAL DETAILS...Avalanche danger will increase due to the heavy snow and gusty winds. The heaviest snowfall will occur through this evening. |
| Alert: | Winter Weather Advisory |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Onset: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-23 @ 9:05 pm |
| Headline: | Winter Weather Advisory issued April 23 at 8:05PM MDT until April 24 at 6:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow occurring. Additional snow accumulations between 4 and 8 inches. Winds gusting as high as 35 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...Until 6 PM MDT Friday. * IMPACTS...Travel could be very difficult on US-14. Recreation in the high country will be impacted by heavy accumulating snow. Combination of strong winds and snow will produce near whiteout conditions at times in blowing snow. * ADDITIONAL DETAILS...The heaviest snowfall is forecast tonight through Friday morning. |
| Alert: | Winter Storm Warning |
| Area(s): | Crazy Mountains |
| Effective: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 am |
| Onset: | 2026-04-23 @ 9:05 pm -> 2026-04-24 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-23 @ 9:05 pm |
| Headline: | Winter Storm Warning issued April 23 at 8:05PM MDT until April 24 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow occurring. Additional snow accumulations between 2 and 4 inches. Locally higher amounts possible. Winds gusting as high as 35 mph. * WHERE...Crazy Mountains. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Recreation in the high country will be impacted by heavy accumulating snow. Expect periods of significantly reduced visibility due to snow and blowing snow. * ADDITIONAL DETAILS...Avalanche danger will increase due to the heavy snow and gusty winds. The heaviest snowfall will occur through this evening. |
| Alert: | Winter Weather Advisory |
| Area(s): | Potomac/Seeley Lake Region |
| Effective: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-23 @ 5:35 pm |
| Headline: | Winter Weather Advisory issued April 23 at 4:35PM MDT until April 24 at 12:00PM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow. There is a likelihood of developing or ongoing minor to moderate winter weather impacts. Additional snow accumulations between 2 and 6 inches. * WHERE...Highway 200 Bonner to Greenough, I-90 East Missoula to Bearmouth, and Highway 83 Seeley Lake to Condon. * WHEN...Until noon MDT Friday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. Winter traveling conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Roads will start out wet this evening, but as heavier snow bands move in and temperatures drop below freezing tonight, standing water and slush may quickly freeze, with icy conditions possible through the Friday morning commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bitterroot/Sapphire Mountains |
| Effective: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-23 @ 5:35 pm |
| Headline: | Winter Weather Advisory issued April 23 at 4:35PM MDT until April 24 at 12:00PM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow. There is a likelihood of developing or ongoing minor to moderate winter weather impacts. Additional snow accumulations between 3 and 8 inches. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...Until noon MDT 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 Thursday evening and Friday morning commutes, especially over higher passes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Onset: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-23 @ 5:35 pm |
| Headline: | Winter Weather Advisory issued April 23 at 4:35PM MDT until April 24 at 12:00PM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow. There is a likelihood of developing or ongoing minor to moderate winter weather impacts. Total snow accumulations of 3 to 6 inches in the valleys, 5 to 10 inches at pass level, and over 12 inches in the high terrain. Winds gusting as high as 35 mph. * WHERE...Homestake Pass, Georgetown Lake, MacDonald Pass, Highway 12 Garrison to Elliston, and Butte. * WHEN...Until noon MDT Friday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. 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 Thursday evening and Friday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Roads will start out wet this evening, but standing water and slush may quickly freeze tonight, with icy conditions possible through the Friday morning commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Missoula/Bitterroot Valleys |
| Effective: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 12:00 pm |
| Onset: | 2026-04-23 @ 10:00 pm -> 2026-04-24 @ 12:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-23 @ 5:35 pm |
| Headline: | Winter Weather Advisory issued April 23 at 4:35PM MDT until April 24 at 11:00AM 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 three inches, with localized higher amounts near 6 inches. * WHERE...Bitterroot Valley and Missoula. * WHEN...From 9 PM this evening to 11 AM MDT Friday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. The heavy nature of the snow could lead to localized tree damage and scattered power outages. These conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Roads will start out wet this evening, but as heavier snow bands move in and temperatures drop below freezing tonight, standing water and slush may quickly freeze, with icy conditions possible through the Friday morning commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Lower Clark Fork Region |
| Effective: | 2026-04-23 @ 5:35 pm -> 2026-04-24 @ 12:00 pm |
| Onset: | 2026-04-23 @ 10:00 pm -> 2026-04-24 @ 12:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-04-23 @ 5:35 pm |
| Headline: | Winter Weather Advisory issued April 23 at 4:35PM MDT until April 24 at 11:00AM 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 three inches and 3 to 7 inches over Evaro Hill. * WHERE...Evaro Hill, I-90 Lookout Pass to Haugan, Highway 200 Thompson Falls to Plains, and Highway 200 Trout Creek to Heron. * WHEN...From 9 PM this evening to 11 AM MDT Friday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. Winter traveling conditions. The heavy nature of the snow could lead to localized tree damage and scattered power outages. These conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Roads will start out wet this evening, but as heavier snow bands move in and temperatures drop below freezing tonight, standing water and slush may quickly freeze, with icy conditions possible through the Friday morning commute. |