FNUS75 KMSO 171533 FWSMSO SPOT FORECAST FOR SLEEMAN CREEK NATIONAL WEATHER SERVICE MISSOULA MT 933 AM MDT MON MAY 17 2010 FORECAST IS BASED ON REQUEST TIME OF 0856 MDT ON MAY 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WARM AND UNSTABLE AIR MASS UNDER SOUTHWEST UPPER LEVEL WILL SUPPORT SOUTHERLY WINDS AROUND AND OVER THE FIRE THROUGH THE DAY. CLOUDS WILL BEGIN TO INCREASE...WITH HIGH CIRRUS FIRST...BEFORE AFTERNOON CUMULUS DEVELOPS MOSTLY OVER THE HIGHER TERRAIN. TEMPERATURES WILL WARM INTO THE 80S FOR ANOTHER WARM AFTERNOON AND AIDE IN DESTABILIZING THE ATMOSPHERE. GUSTY WINDS FROM AFTERNOON MIXING AND ALSO FROM SHOWER OUTFLOWS WILL BE POSSIBLE THROUGH THE EARLY EVENING. .TODAY... SKY/WEATHER.........MOSTLY CLEAR EARLY...INCREASING CIRRUS THROUGH THE MORNING. AFTERNOON CUMULUS DEVELOPMENT WITH CHANCE OF LIGHT RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON AFTER 1200 MDT. CWR.................10 PERCENT. MAX TEMPERATURE.....81-86. MIN HUMIDITY........15-20 PERCENT. WIND (20 FT)........SOUTH WINDS 7-11 MPH GUSTS UP TO 25 MPH IN THE AFTERNOON. GUSTY OUTFLOW WINDS POSSIBLE FROM NEARBY SHOWER DEVELOPMENT. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF LIGHT RAIN SHOWERS AFTER MIDNIGHT. CWR.................10 PERCENT. MIN TEMPERATURE.....45-50. MAX HUMIDITY........78-83 PERCENT. WIND (20 FT)........SOUTH WINDS 5-6 MPH IN THE EVENING BECOMING VARIABLE 2-5 MPH. HAINES INDEX........3 VERY LOW. .TUESDAY... HAINES INDEX........3 VERY LOW. SKY/WEATHER.........CHANCE OF RAIN SHOWERS IN THE MORNING...THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....70-75. MIN HUMIDITY........30-34 PERCENT. WIND (20 FT)........SOUTH WINDS 6-10 MPH BECOMING WEST AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON. $$ FORECASTER...KOLATA/NOLTE REQUESTED BY...GUE TYPE OF REQUEST...WILDFIRE .TAG 20100517.SLEEM.01/MSO