FNUS75 KMSO 201526
FWSMSO

SPOT FORECAST FOR KEYPOLE 41
NATIONAL WEATHER SERVICE MISSOULA MT
926 AM MDT TUE APR 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1300 MDT ON APRIL 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SLIGHTLY WARMER AND DRY CONDITIONS ONCE AGAIN TODAY. LOW
PRESSURE ENTERING THE WEST COAST WILL INCREASE PRESSURE GRADIENTS AND
PRODUCE AN INCREASE IN EAST-SOUTHEAST WINDS ON THE RIDGES THIS AFTERNOON.
OTHERWISE EXPECT TERRAIN DRIVEN WINDS ON THE MIDSLOPES AND DRAINAGES.
EXPECT SOME CUMULUS CLOUD DEVELOPMENT THIS AFTERNOON.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY WITH SOME AFTERNOON CUMULUS BUILDUPS.
CWR.................0 PERCENT.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....UPSLOPE 2-4 MPH AFTER 1200.
 UPR SLP/RIDGETOP...EAST 6-9 MPH.
MIXING HEIGHT.......5700 FT AGL.
MIXING WINDS........SOUTHEAST 15 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF A SHOWER OR THUNDERSTORM
                    AFTER 1700.
CWR.................10 PERCENT.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........68-73 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....DOWNSLOPE 1-3 MPH AFTER 2000.
 UPR SLP/RIDGETOP...SOUTHEAST 5 MPH.
MIXING HEIGHT.......2000 FT AGL.
MIXING WINDS........LIGHT AND VARIABLE.

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY EARLY THEN MOSTLY CLOUDY. CHANCE OF RAIN
                    SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
                    AFTER 1000.
CWR.................10 PERCENT.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........44-49 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....UPSLOPE 1-4 MPH AFTER 1200.
 UPR SLP/RIDGETOP...SOUTHEAST AROUND 5 MPH.
MIXING HEIGHT.......3300 FT AGL.
MIXING WINDS........NORTHWEST 5 MPH.

$$
FORECASTER...RPN
REQUESTED BY...BOB DERLETH
TYPE OF REQUEST...PRESCRIBED
.TAG 20100420.KEYPO.01/MSO