000 FNUS75 KCYS 201615 FWSCYS SPOT FORECAST FOR SAVERY CREEK RX BURN......BLM NATIONAL WEATHER SERVICE NWFO CHEYENNE 1015 AM MDT SAT SEP 20 2003 VALID UNTIL 615 PM MDT SAT SEP 20 2003 IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. DISCUSSION...AN UPPER LEVEL TROUGH WILL MOVE ACROSS SOUTHERN MONTANA THIS AFTERNOON. THIS FEATURE WILL PUSH A COLD FRONT THROUGH THE AREA EARLY THIS EVENING. A FEW LIGHT SHOWERS MAY DEVELOP THIS AFTERNOON...BUT LITTLE IN THE WAY OF MEASUREABLE PRECIPITATION IS EXPECTED. SURFACE HIGH PRESSURE BUILDS OVER WYOMING SUNDAY. A SECONDARY COLD FRONT IS EXPECTED TO MOVE THROUGH EASTERN WYOMING LATE SUNDAY AFTERNOON. FOR PLANNED IGNITION TIME OF 830 MDT 9/20/03 SKY / WEATHER.......PARTLY SUNNY. TEMPERATURE.........MAX 67 RH..................MIN 18% 20 FOOT WIND........WEST 15 TO 25 MPH...BECOMING NORTHWEST WITH GUSTS TO 30 MPH BY 3 PM. CWR.................5% LAL.................1 HAINES INDEX........3 MIXING HEIGHT.......8000 FT AGL MIXING WINDS........NORTHWEST 20 MPH SMOKE DISPERSAL.....EXCELLENT FOR TONIGHT SKY / WEATHER.......PARTLY CLOUDY/ TEMPERATURE.........MIN 34 RH..................MAX 60% 20 FOOT WIND........BECOMING SOUTHWEST AND DECREASING TO 5 TO 10 MPH BY LATE EVENING. CWR.................5% LAL.................1 HAINES INDEX........3 MIXING HEIGHT.......DECREASING TO 1000 FT AGL. MIXING WINDS........SOUTHWEST 10 MPH. SMOKE DISPERSAL.....POOR OUTLOOK FOR TOMORROW SKY / WEATHER.......MOSTLY SUNNY. TEMPERATURE.........MAX 66 RH..................MIN 19% 20 FOOT WIND........WEST 15 TO 25 MPH CWR.................5% LAL.................1 HAINES INDEX........3 MIXING HEIGHT.......7000 FT AGL. MIXING WINDS........WEST 15 MPH. SMOKE DISPERSAL.....VERY GOOD FORECASTER...STARK $$