FNUS75 KMSO 181623
FWSMSO

SPOT FORECAST FOR SAWMILL EMB
NATIONAL WEATHER SERVICE MISSOULA MT
1023 AM MDT SAT APR 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL GRADUALLY
BUILD OVER THE BURN AREA TODAY. ENOUGH MOISTURE WILL REMAIN IN THE
FLOW ALOFT HOWEVER TO PROMOTE SOME HIGH CIRRUS CLOUDS THIS
AFTERNOON AND EVENING. TEMPERATURE AND RELATIVE HUMIDITY READINGS
ARE EXPECTED TO REMAIN SIMILAR TO YESTERDAY. SLIGHTLY MORE MID AND
HIGH LEVEL CLOUD COVER IS ANTICIPATED TOMORROW...HOWEVER
TEMPERATURES WILL TREND SLIGHTLY WARMER DUE TO THE WARMING AIR
MASS UNDER THE HIGH PRESSURE RIDGE. WINDS WILL GENERALLY REMAIN
TERRAIN DRIVEN EXCEPT NEAR RIDGE TOPS WHERE A WEST TO NORTHWEST
WIND WILL DOMINATE.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY...CIRRUS FORMING IN THE LATE AFTERNOON.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 61-66...TOP 57-62.
MIN HUMIDITY........BOTTOM 16-21 PERCENT...TOP 19-24 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 4-6 MPH BY 1030 MDT BECOMING
                    WEST TO NORTHWEST UP TO 10 MPH IN THE LATE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........WEST 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....34-39.
MAX HUMIDITY........76-81 PERCENT.
WIND (20 FT)........WEST TO NORTHWEST 5-10 MPH BECOMING DOWNSLOPE/DOWNVALLEY
                    1-4 MPH AROUND 2030 MDT.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........WEST 5 MPH.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY BECOMING PARTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....BOTTOM 66-71...TOP 62-67.
MIN HUMIDITY........BOTTOM 16-21 PERCENT...TOP 20-25 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-5 MPH BECOMING WEST WINDS 6-12
                    MPH IN THE LATE AFTERNOON...MAINLY NEAR THE TOP.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........WEST 15 MPH.

$$
FORECASTER...VIA
REQUESTED BY...JEFFREY HAYES
TYPE OF REQUEST...PRESCRIBED
.TAG 20090418.SAWMI.01/MSO