Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Winter Weather Advisory |
| Area(s): | Little Belt and Highwood Mountains |
| Effective: | 2026-10-22 @ 1:57 pm -> 2026-10-23 @ 7:15 am |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-24 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:57 pm |
| Headline: | Winter Weather Advisory issued October 22 at 12:57PM MDT until October 24 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 45 mph. * WHERE...Little Belt and Highwood Mountains. * WHEN...From noon Friday to midnight MDT Friday Night. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Friday evening commute. Gusty winds could bring down tree branches. |
| Alert: | Winter Weather Advisory |
| Area(s): | Elkhorn and Boulder Mountains; Northwest Beaverhead County; Gallatin and Madison County Mountains and Centennial Mountains |
| Effective: | 2026-10-22 @ 1:57 pm -> 2026-10-23 @ 7:15 am |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-24 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:57 pm |
| Headline: | Winter Weather Advisory issued October 22 at 12:57PM MDT until October 24 at 12:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations 2 to 5 inches. * WHERE...Elkhorn and Boulder Mountains, Gallatin and Madison County Mountains and Centennial Mountains, and Northwest Beaverhead County. * WHEN...From noon Friday to midnight MDT Friday Night. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Friday evening commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Judith Basin County and Judith Gap; Fergus County below 4500ft |
| Effective: | 2026-10-22 @ 1:57 pm -> 2026-10-23 @ 7:15 am |
| Onset: | 2026-10-23 @ 5:00 pm -> 2026-10-24 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:57 pm |
| Headline: | Winter Weather Advisory issued October 22 at 12:57PM MDT until October 24 at 3:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations one to three inches. Winds gusting as high as 50 mph. * WHERE...Fergus County below 4500ft and Judith Basin County and Judith Gap. * WHEN...From 4 PM Friday to 3 AM MDT Saturday. * IMPACTS...Plan on reduced visibility and slippery road conditions. The hazardous conditions will impact the Friday evening commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Rain will change to wet snow late Friday afternoon with a period of wet snow and gusty northwest winds continuing through early Friday evening before precipitation diminishes overnight. The combination of gusty winds and wet snow after sunset will lead to lower visibility and snow or slush on road surfaces will degrade travel conditions Friday evening. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bears Paw Mountains and Southern Blaine; Snowy and Judith Mountains |
| Effective: | 2026-10-22 @ 1:57 pm -> 2026-10-23 @ 7:15 am |
| Onset: | 2026-10-23 @ 5:00 pm -> 2026-10-24 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:57 pm |
| Headline: | Winter Weather Advisory issued October 22 at 12:57PM MDT until October 24 at 3:00AM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations 2 to 5 inches. Winds gusting as high as 45 mph. * WHERE...Snowy and Judith Mountains and Bears Paw Mountains. * WHEN...From 4 PM Friday to 3 AM MDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Friday evening commute. Gusty winds could bring down tree branches. |
| Alert: | High Wind Warning |
| Area(s): | Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County |
| Effective: | 2026-10-22 @ 1:39 pm -> 2026-10-23 @ 7:00 am |
| Onset: | 2026-10-23 @ 12:00 pm -> 2026-10-23 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:39 pm |
| Headline: | High Wind Warning issued October 22 at 12:39PM MDT until October 23 at 3:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Northwest winds 30 to 40 mph, with gusts up to 60 mph possible. * WHERE...Eastern Glacier, Western Toole, and Central Pondera, Eastern Toole and Liberty, and Hill County. * WHEN...From 11 AM to 3 PM MDT Friday. * IMPACTS...Travel will be difficult, especially for high profile vehicles. |
| Alert: | High Wind Warning |
| Area(s): | Fergus County below 4500ft |
| Effective: | 2026-10-22 @ 1:39 pm -> 2026-10-23 @ 7:00 am |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-23 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-10-22 @ 1:39 pm |
| Headline: | High Wind Warning issued October 22 at 12:39PM MDT until October 23 at 9:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Fergus County below 4500ft. * WHEN...From noon to 9 PM MDT Friday. * IMPACTS...Travel will be difficult, especially for high profile vehicles. |
| Alert: | Red Flag Warning |
| Area(s): | Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM |
| Effective: | 2026-10-22 @ 1:14 pm -> 2026-10-23 @ 1:15 pm |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-23 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-22 @ 1:14 pm |
| Headline: | Red Flag Warning issued October 22 at 12:14PM MDT until October 23 at 9:00PM MDT by NWS Billings MT |
| Description: |
The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from noon to 9 PM MDT Friday. * IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and a wind shift with a cold front will create erratic fire behavior and difficult control of new or existing fires. * AFFECTED AREA: In North Central WY Fire Zone...274. In Southeast MT Fire Zone...131. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In North Central WY...Sheridan. In Northwest SD...Harding. In South Central MT...Big Horn. In Southeast MT...Carter...Fallon...Powder River...Rosebud Treasure. The most dangerous conditions are expected along and southeast of a Baker Montana to Sheridan Wyoming line. * COLD FRONT: Late afternoon into early evening. * WIND: Southwest 20 to 30 mph with gusts up to 45 mph. Winds shifting to the northwest behind the cold front, with continued gusts up to 45 mph through late Friday night. * HUMIDITY: 15 to 25 percent. * TEMPERATURES: 75 to 85 degrees. |
| Alert: | Winter Weather Advisory |
| Area(s): | Judith Gap |
| Effective: | 2026-10-22 @ 1:05 pm -> 2026-10-23 @ 1:15 pm |
| Onset: | 2026-10-23 @ 4:00 pm -> 2026-10-24 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-22 @ 1:05 pm |
| Headline: | Winter Weather Advisory issued October 22 at 12:05PM MDT until October 24 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow and Blowing Snow expected. Total snow accumulations up to 3 inches. Winds gusting as high as 55 mph. * WHERE...Judith Gap. * WHEN...From 3 PM Friday to 6 AM MDT Saturday. * IMPACTS...Plan on slushy to slick and snow covered road conditions, including along US-191. Widespread blowing snow could significantly reduce visibility at times. The hazardous conditions will impact the Friday evening commute. Damage to trees and power lines could lead to power outages. * ADDITIONAL DETAILS...The most difficult conditions are expected to occur between 7pm and 3am. |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-10-22 @ 12:14 pm -> 2026-10-23 @ 5:00 am |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-24 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-10-22 @ 12:14 pm |
| Headline: | Lake Wind Advisory issued October 22 at 11:14AM MDT until October 24 at 12:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...Northwest winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Fort Peck Lake. * WHEN...From noon Friday to noon MDT Saturday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Wave heights up to 5 feet possible. |
| Alert: | Winter Weather Advisory |
| Area(s): | Butte/Blackfoot Region |
| Effective: | 2026-10-22 @ 11:24 am -> 2026-10-24 @ 1:00 am |
| Onset: | 2026-10-23 @ 4:00 pm -> 2026-10-24 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Missoula MT on 2026-10-22 @ 11:24 am |
| Headline: | Winter Weather Advisory issued October 22 at 10:24AM MDT until October 24 at 12:00AM MDT by NWS Missoula MT |
| Description: |
* WHAT...Snow expected above 6000 feet. Total snow accumulations trace to three inches. A period of moderate snow showers may develop around rush hour. * WHERE...MacDonald and Homestake Pass along with Georgetown Lake. * WHEN...From 3 PM Friday to midnight MDT Friday Night. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Friday evening commute. |
