FNUS75 KMSO 131745
FWSMSO

SPOT FORECAST FOR ALDER GULCH RX
NATIONAL WEATHER SERVICE MISSOULA MT
1145 AM MDT THU MAY 13 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL REMAIN DOMINANT THROUGH THE WEEKEND
RESULTING IN A PROGRESSIVE WARMING AND DRYING TREND. WINDS WILL LARGELY
BE TERRAIN DRIVEN AND GUSTY DURING THE AFTERNOONS IN A WELL MIXED
ENVIRONMENT. AFTERNOON CUMULUS CLOUDS ARE LIKELY TO DEVELOP BUT
DISSIPATE OVERNIGHT TO REVEAL A CLEARING SKY AND EXCEPTIONAL COOLING.
A WEAK INVERSION IS POSSIBLE EARLY IN THE MORNING WHICH WOULD INHIBIT
MIXING. BUT THIS WILL ONLY BE SHORT LIVED AS DAYTIME HEATING QUICKLY
DESTABILIZES THE ATMOSPHERE.

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING NORTHWEST 7-15 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......8700 FT AGL.
MIXING WINDS........NORTH 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....28-33.
MAX HUMIDITY........82-87 PERCENT.
WIND (20 FT)........WEST WINDS 7-15 MPH IN THE EVENING BECOMING
                    DOWN VALLEY AFTER SUNSET. VARIABLE 2-5 MPH
                    OVERNIGHT.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........WEST 5 MPH.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................10 PERCENT.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH BECOMING WEST 5-6
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......8800 FT AGL.
MIXING WINDS........NORTH 5 MPH.

$$

FORECASTER...DICKERSON
REQUESTED BY...HAHNKAMP
TYPE OF REQUEST...PRESCRIBED
.TAG 20100513.ALDER.01/MSO