In effect:
Friday, Oct 23 2026 1:30 PM MDT - Saturday, Oct 24 2026 12:00 AM MDT

Issued by:
NWS Billings MT

* IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and 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 gusting up to 45 mph. Winds shifting to the northwest behind a late day cold front, with continued gusts to 45 mph through much of tonight.

* HUMIDITY: Minimums of 14 to 20 percent.

* TEMPERATURES: Highs of 75 to 85 degrees.

Instructions:
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Areas Impacted:

In effect:
Friday, Oct 23 2026 11:00 AM MDT - Friday, Oct 23 2026 11:00 PM MDT

Issued by:
NWS Rapid City SD

RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHERN FOOT HILLS, BUTTE COUNTY AREA, NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, WESTON COUNTY PLAINS, AND WYOMING BLACK HILLS

.Warm temperatures, humidities as low as 13%, and southwest winds gusting to 50 mph ahead of an approaching cold front will create widespread critical fire weather conditions Friday afternoon through Friday evening. Southwest winds increase over northeastern Wyoming after 10 am Friday morning with sustained winds of 25 to 35 mph and gusts of 40 to 50 mph through the afternoon. Winds will shift to the northwest after midnight as the front moves through. While some showers may accompany the front, not expecting any widespread wetting rains.

Affected Area:
Fire Weather Zones 314, 315, 316, 317, 318, 323, and 327.

Timing:
Until 11 PM MDT this evening.

Winds:
Southwest winds 25 to 35 mph with gusts up to 50 mph.

Relative Humidity:
As low as 13 percent.

Impacts:
Any fires that develop will spread rapidly. Outdoor burning is not recommended.

Instructions:
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

Areas Impacted: