FNUS75 KMSO 181733
FWSMSO

SPOT FORECAST FOR SELWAY FALLS CABIN
NATIONAL WEATHER SERVICE MISSOULA MT
1133 AM MDT FRI SEP 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1140 PDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...QUIET WEATHER TODAY...BUT FRONTAL PASSAGE WITH WINDS ON SATURDAY...

.DISCUSSION...BENIGN WEATHER IS EXPECTED FOR THE DURATION OF TODAY
UNDER A STABLE ATMOSPHERE. A BIG CHANGE WILL COME LATE TONIGHT AND
MORE SO TOMORROW AS AN APPROACHING WEATHER SYSTEM AND ASSOCIATED
COLD FRONT PASSES OVER THE BURN SITE EARLY TOMORROW AFTERNOON.
GUSTY SOUTHWEST WINDS ARE EXPECTED PARTICULARLY AT THE HIGHER
ELEVATIONS OF THE BURN DURING THIS TIME AND SHOULD CONTINUE
THROUGHOUT THE DAY. THERE IS THE LIKELIHOOD OF SHOWERS OVER THE
SITE ALTHOUGH WETTING RAINS ARE NOT EXPECTED. COOLER TEMPERATURES
AND GREATER HUMIDITY RECOVERIES WILL RESULT FOLLOWING THE FRONTAL
PASSAGE.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
TEMPERATURE.........LOWER...MAX 83-86. UPPER...MAX 72-76.
RH..................LOWER...MIN 34-38 PERCENT. UPPER...MIN 43-48 PERCENT.
WIND (20 FT)........SOUTH AT 3-6 MPH.
MIXING HEIGHT.......4500 FT AGL.
MIXING WINDS........SOUTH 10 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR...BECOMING PARTLY CLOUDY BY LATE MORNING.
CWR.................0 PERCENT.
TEMPERATURE.........LOWER...MIN 53-58. UPPER...MIN
RH..................LOWER...MAX 90-95 PERCENT. UPPER...93-98 PERCENT.
WIND (20 FT)........VARIABLE 1-3 MPH BECOMING SOUTHWEST AROUND 5-8 MPH
                    EARLY IN THE MORNING.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........SOUTH 5 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
TEMPERATURE.........LOWER...MAX 77-83. UPPER...MAX 68-75.
RH..................LOWER...MIN 40-45 PERCENT. UPPER...83-89 PERCENT.
WIND (20 FT)........SOUTHWEST AROUND 5-8 MPH EARLY IN THE
                    MORNING BECOMING WEST 10-15 MPH WITH
                    GUSTS TO 25 MPH POSSIBLE IN THE AFTERNOON
                    PARTICULARLY AT THE HIGHER ELEVATIONS.
MIXING HEIGHT.......6100 FT AGL.
MIXING WINDS........WEST 25 MPH.

$$
FORECASTER...ALLEGRETTO
REQUESTED BY...MARGARET WILLIAMS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090918.SELWA.01/MSO