...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 309... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 309... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 7 PM MDT this evening. The Fire Weather Watch is no longer in effect. * WIND...West 15 to 20 MPH sustained with gusts up to 30 MPH. Gusts of 40 to 60 MPH will be possible in the vicinity of high- based showers this afternoon. * HUMIDITY...12 to 15 percent in the afternoon. * HAINES...5 to 6. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is strongly discouraged.