Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: High Wind Watch
Area(s): Madison River Valley
Effective: 2026-08-31 @ 11:19 pm -> 2026-09-01 @ 7:00 pm
Onset: 2026-09-02 @ 1:00 pm -> 2026-09-03 @ 10:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-08-31 @ 11:19 pm
Headline: High Wind Watch issued August 31 at 10:19PM MDT until September 3 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...South winds 30 to 40 mph, with gusts up to 60 mph possible.

* WHERE...Madison River Valley.

* WHEN...From Wednesday afternoon through Thursday evening.

* IMPACTS...Damaging winds could blow down trees and power lines.
Travel could be difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Wind speeds will decrease to between 20 to 30
mph from the late evening hours on Wednesday through the
mid-morning hours on Thursday before increasing once again.

Alert: Fire Weather Watch
Area(s): Eastern Beaverhead National Forest
Effective: 2026-08-31 @ 11:31 am -> 2026-09-01 @ 4:15 pm
Onset: 2026-09-02 @ 1:00 pm -> 2026-09-03 @ 1:00 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Missoula MT on 2026-08-31 @ 11:31 am
Headline: Fire Weather Watch issued August 31 at 10:31AM MDT until September 3 at 12:00AM MDT by NWS Missoula MT
Description: ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST
BEAVERHEAD...

The National Weather Service in Missoula MT has issued a Fire Weather
Watch.

* AFFECTED AREA...Fire Weather Zone 111.

* TIMING...From Wednesday afternoon through Wednesday evening.

* WINDS...Southwest winds 20 to 30 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY...Relative Humidity between 20 to 35 percent.

* IMPACTS...Any fires that develop will spread rapidly. Outdoor
burning is not recommended.