Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: High Wind Warning
Area(s): Fergus County below 4500ft; Snowy and Judith Mountains
Effective: 2026-09-14 @ 1:22 am -> 2026-09-14 @ 7:00 pm
Onset: 2026-09-14 @ 10:00 am -> 2026-09-14 @ 7:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-09-14 @ 1:22 am
Headline: High Wind Warning issued September 14 at 12:22AM MDT until September 14 at 6:00PM MDT by NWS Great Falls MT
Description: * WHAT...West winds 30 to 40 mph, with gusts up to 60 mph expected.

* WHERE...Snowy and Judith Mountains and Fergus County below 4500ft.

* WHEN...From 9 AM this morning to 6 PM MDT this evening.

* 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: 2026-09-14 @ 12:48 am -> 2026-09-14 @ 4:00 pm
Onset: 2026-09-14 @ 12:48 am -> 2026-09-15 @ 1:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-09-14 @ 12:48 am
Headline: Lake Wind Advisory issued September 13 at 11:48PM MDT until September 15 at 12:00AM MDT by NWS Glasgow MT
Description: * WHAT...Southeast winds at 10 to 20 with gusts to 30 mph, switching
to west northwest at 20 to 30 mph with gusts up to 50 mph after 8
AM.

* WHERE...Fort Peck Lake, Medicine Lake, and Nelson Reservoir.

* WHEN...Until midnight MDT Monday Night.

* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.

* ADDITIONAL DETAILS...Wave heights as high as 4 to 5 feet on Fort
Peck Lake.

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