Red Flag Warning: North Bighorn Basin/Worland BLM; Cody Foothills; Natrona County/Casper BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM; Upper Wind River Basin/Wind River Basin; South Bighorn Mountains; Absaroka Mountains/North Shoshone NF; Owl Creek Mountains; Granite/Green/Ferris/Rattlesnake Mountains

source: us-gov-api (us-gov-api:noaa-weather)published 2026-09-03 11:12ingested 2026-09-04 02:51

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Red Flag Warning — North Bighorn Basin/Worland BLM; Cody Foothills; Natrona County/Casper BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM; Upper Wind River Basin/Wind River Basin; South Bighorn Mountains; Absaroka Mountains/North Shoshone NF; Owl Creek Mountains; Granite/Green/Ferris/Rattlesnake Mountains Severity: Severe. Certainty: Likely. The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon to 9 PM MDT Friday. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283...285...289. In North Central WY Fire Zones...275...276...281...282...287. In Northwest WY Fire Zone....286. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. In Southwest WY...Sweetwater. * WIND: Southwest 15 to 25 mph with gusts up to 30 to 40 mph. * HUMIDITY: As low as 10 to 15 percent. * TEMPERATURES: Highs in the 80s. Lows in the 50s.

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The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.