Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Wind Advisory
Area(s): Kootenai/Cabinet Region; Flathead/Mission Valleys
Effective: 2026-09-25 @ 8:17 am -> 2026-09-26 @ 1:00 am
Onset: 2026-09-25 @ 3:00 pm -> 2026-09-26 @ 1:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2026-09-25 @ 8:17 am
Headline: Wind Advisory issued September 25 at 7:17AM MDT until September 26 at 12:00AM MDT by NWS Missoula MT
Description: * WHAT...Southwest winds 15 to 25 mph with gusts up to 45 mph
expected.

* WHERE...Flathead/Mission Valleys and Kootenai/Cabinet Region.

* WHEN...From 2 PM this afternoon to midnight MDT tonight.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

Alert: Wind Advisory
Area(s): Missoula/Bitterroot Valleys
Effective: 2026-09-25 @ 8:17 am -> 2026-09-26 @ 1:00 am
Onset: 2026-09-25 @ 3:00 pm -> 2026-09-26 @ 1:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2026-09-25 @ 8:17 am
Headline: Wind Advisory issued September 25 at 7:17AM MDT until September 26 at 12:00AM MDT by NWS Missoula MT
Description: * WHAT...West winds 15 to 25 mph with gusts up to 45 mph expected.

* WHERE...Missoula/Bitterroot Valleys.

* WHEN...From 2 PM this afternoon to midnight MDT tonight.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds are expected west of Highway
93 through the Bitterroot valley.

Alert: High Wind Warning
Area(s): Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Southern High Plains
Effective: 2026-09-25 @ 3:54 am -> 2026-09-25 @ 7:00 pm
Onset: 2026-09-25 @ 6:00 pm -> 2026-09-26 @ 7:00 am
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-09-25 @ 3:54 am
Headline: High Wind Warning issued September 25 at 2:54AM MDT until September 26 at 6:00AM MDT by NWS Great Falls MT
Description: * WHAT...Westerly winds 30 to 50 mph, with gusts up to 70 mph
expected.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera,
Northern High Plains, and Southern High Plains.

* WHEN...From 5 PM this afternoon to 6 AM MDT Saturday.

* IMPACTS...Travel could be difficult, especially for high profile
vehicles.

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 2026-09-25 @ 2:04 am -> 2026-09-26 @ 2:15 am
Onset: 2026-09-25 @ 9:00 am -> 2026-09-26 @ 10:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-09-25 @ 2:04 am
Headline: Lake Wind Advisory issued September 25 at 1:04AM MDT until September 26 at 9:00AM MDT by NWS Glasgow MT
Description: * WHAT...South winds 15 to 25 mph with gusts up to 40 mph expected.

* WHERE...Fort Peck Lake

* WHEN...From 8 AM this morning to 9 AM MDT Saturday.

* IMPACTS...Strong lake winds could produce rough waves which can
overturn or swamp small craft.


* ADDITIONAL DETAILS...Waves up to 4 feet will be possible.

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