The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 7 PM MDT Tuesday. The Fire Weather Watch has been upgraded.
* AFFECTED AREA...Fire weather zones 434, 417 and 418.
* WIND...South winds 10 to 20 mph with gusts up to 30 mph.
* HUMIDITY...10 to 15 percent.
* IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.