Severe · Red Flag WarningActive alert

Red Flag Warning issued September 8 at 6:59PM MDT until September 10

Affecting Natrona County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain

In effect until: Sep 9, 2026, 7:00 PM

Natrona County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain

Likely impact; effects through 7:00 PM.

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.

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* IMPACTS: Low Humidity...Gusty Wind...and a Wind Shift in
association with a Cold Front could cause erratic fire behavior.

* AFFECTED AREA:
In Central WY...Fire Weather Zones 280...289 and 300.

* COUNTIES AFFECTED:
In Central WY...Fremont...Natrona.
In Southwest WY...Sweetwater.

* COLD FRONT: Winds turn northerly after sunset Tuesday, as a dry
cold front moves south across the region.

* WIND: Wednesday, west to southwest 10 to 20 mph with gusts to
around 25 mph. Thursday, west to southwest 15 to 25 mph with
gusts up to 45 mph.

* HUMIDITY: 6 to 10 percent.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Red Flag Warning issued September 8 at 6:59PM MDT until September 10

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