FNUS75 KMSO 111945
FWSMSO

SPOT FORECAST FOR SAWTOOTH
NATIONAL WEATHER SERVICE MISSOULA MT
145 PM MDT TUE SEP 11 2012

FORECAST IS BASED ON REQUEST TIME OF 1259 MDT ON SEPTEMBER 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL CONTINUE TO BUILD IN TONIGHT
AND TOMORROW WITH STRONG INVERSIONS TO BUILD AND LITTLE MIXING ON
WEDNESDAY. TEMPERATURES AT THE BOTTOM OF THE FIRE WILL BE WELL
BELOW FREEZING FOR A FEW HOURS IN THE EARLY MORNING WITH HIGH
TEMPERATURES A LITTLE COOLER. WIND WILL TERRAIN AND DIURNALLY
DRIVEN THROUGH THE CANYON AND IN THE BITTERROOT VALLEY PORTION OF
THE FIRE. THE TOP WILL AGAIN HAVE WEST WINDS ON WEDNESDAY BUT NOT
AS STRONG AS TUESDAY.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....26-31 BOTTOM AND TOP. WARMER AT MID SLOPES.
MAX HUMIDITY........75-80 PERCENT BOTTOM TO 55-60 TOP.
WIND (20 FT)........WEST WINDS 5-7 MPH BECOMING
                    DOWNSLOPE/DOWNVALLEY 2-4 MPH.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........WEST 5 MPH.
HAINES INDEX........4 LOW.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....58-63 BOTTOM TO 45-50 TOP.
MIN HUMIDITY........13-18 PERCENT BOTTOM TO 20-25 TOP.
WIND (20 FT)........UPSLOPE/UPVALLEY 2-6 MPH AND
                    WEST 10-15 MPH AT THE TOP
                    IN THE AFTERNOON.
MIXING HEIGHT.......2100 FT AGL.
MIXING WINDS........NORTH 10 MPH.
HAINES INDEX........4 LOW.


$$
FORECASTER...KITSMILLER
REQUESTED BY...KELLY ALLEN
TYPE OF REQUEST...WILDFIRE
.TAG 20120911.SAWTO.01/MSO