Red Flag Warning: Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Custer County; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM

source: us-gov-api (us-gov-api:noaa-weather)published 2026-09-03 14:19ingested 2026-09-04 02:51

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Red Flag Warning — Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Custer County; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM Severity: Severe. Certainty: Likely. The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from 9 AM to 9 PM MDT Friday. The Fire Weather Watch is no longer in effect. * IMPACTS: Low humidities, unseasonably warm temperatures, and strong gusty winds will create erratic fire behavior. * AFFECTED AREA: In North Central WY Fire Zone...274. In Southeast MT Fire Zones...131...132. 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...Custer...Fallon...Powder River Rosebud...Treasure. * WIND: South 10 to 20 mph with gusts 25 to 35 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: in the 90s.

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