Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 2026-06-08 @ 1:15 pm -> 2026-06-09 @ 5:00 am
Onset: 2026-06-09 @ 3:00 pm -> 2026-06-10 @ 7:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-06-08 @ 1:15 pm
Headline: Lake Wind Advisory issued June 8 at 12:15PM MDT until June 10 at 6:00PM MDT by NWS Glasgow MT
Description: * WHAT...West northwest winds 15 to 25 mph with gusts up to 40 mph
expected.

* WHERE...Fort Peck Lake.

* WHEN...From 2 PM Tuesday to 6 PM MDT Wednesday.

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

* ADDITIONAL DETAILS...Waves up to 5 feet are expected.

Alert: High Wind Watch
Area(s): Judith Basin County and Judith Gap; Fergus County below 4500ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys
Effective: 2026-06-08 @ 1:01 pm -> 2026-06-09 @ 4:15 am
Onset: 2026-06-10 @ 10:00 am -> 2026-06-11 @ 4:00 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-06-08 @ 1:01 pm
Headline: High Wind Watch issued June 8 at 12:01PM MDT until June 11 at 3:00AM MDT by NWS Great Falls MT
Description: * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible.

* WHERE...Big Belt, Bridger and Castle Mountains, Gates of the
Mountains, Helena Valley, Little Belt and Highwood Mountains,
Meagher County Valleys, Upper Blackfoot and MacDonald Pass, Fergus
County below 4500ft, and Judith Basin County and Judith Gap.

* WHEN...From Wednesday morning through late Wednesday night.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

* ADDITIONAL DETAILS...Two rounds of strong winds are expected with
this event. The first round will arrive Wednesday morning and last
through the early afternoon. There will be a short lull in the
mid-afternoon hours before the wind picks up again Wednesday
evening and lasts through early Thursday morning.