* AFFECTED AREA: In Central WY Fire Zones...280...283...285...289...300. In North Central WY Fire Zones...275...276...281...282...287.

* COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park and Washakie. In Southwest WY...Sweetwater.

* IMPACTS: Strong gusty wind...low humidity...and unseasonably warm temperatures could cause erratic fire behavior.

* WIND: Southwest 25 to 35 mph with widespread gusts of 35 to 45 mph. Gusts in Natrona County will frequently range from 55 to 65 mph.

* HUMIDITY: As low as 8 to 13 percent.

* TEMPERATURES: Highs in the 60s, with 70s in the Bighorn Basin and around Casper.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A High Wind Warning is also in effect until 8 PM Wednesday for most of Natrona County. close

* WHAT...Southwest winds 30 to 45 mph with gusts up to 70 mph, stronger gusts up to 80 mph are possible across portions of Casper Mountain.

* WHERE...Casper Mountain and Natrona County Lower Elevations.

* WHEN...Until 8 PM MDT this evening.

* IMPACTS...Travel will be difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Red Flag Warnings remain in effect across the area through this evening. Strong gusty winds in excess of 60 mph and low relative humidity could aid in rapid growth and spread of any fires. close