# HEADLINE
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RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING
# SUMMARY
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- IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior.
# DETAILS
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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 35 mph.
- HUMIDITY: As low as 10 to 15 percent.
- TEMPERATURES: Highs in the mid 80s to lower 90s.
ISSUED AT
Friday, September 4, 2026 at 1:03 AM MDT
ISSUED BY
National Weather Service Riverton WY
HEADER
URGENT - FIRE WEATHER MESSAGE
# PRECAUTIONARY/PREPAREDNESS ACTIONS
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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 AFFECTED
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Absaroka Mountains/North Shoshone NF, Granite/Green/Ferris/Rattlesnake Mountains, Natrona County/Casper BLM, South Bighorn Basin/Worland BLM, Upper Wind River Basin/Wind River Basin, Cody Foothills, Johnson County/Casper BLM, North Bighorn Basin/Worland BLM, Owl Creek Mountains, South Bighorn Mountains