FNUS76 KOTX 201344
FWSOTX

SPOT FORECAST FOR PURTTEMAN...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE SPOKANE WA
644 AM PDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1030 PDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
STRONG HIGH PRESSURE WILL PERSIST OVER THE PACIFIC NORTHWEST THROUGH
THURSDAY. MIXING HEIGHTS WILL BE QUITE LOW THIS AFTERNOON AND TOMORROW
AFTERNOON UNDER STRONG UPPER LEVEL HIGH PRESSURE. A MAJOR PATTERN
CHANGE IS EXPECTED THIS WEEKEND. A WEAK COLD FRONT WILL BRING
INCREASING CLOUDS AND THE POTENTIAL FOR LIGHT...MAINLY MOUNTAIN
PRECIPITATION THURSDAY NIGHT AND FRIDAY. A MUCH STRONGER FRONT WILL
BRING WIDESPREAD PRECIPITATION AND BREEZY WINDS SNOW SUNDAY INTO
MONDAY.


.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........VARIABLE 0 TO 3 MPH THROUGH 1000 PDT. UPSLOPE/
                    UPVALLEY 1 TO 4 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 1400 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....VARIABLE 2 TO 4 MPH IN THE MORNING...BECOMING
                    SOUTHEAST 3 TO 5 MPH IN THE AFTERNOON.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....43.
MAX HUMIDITY........78 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....NORTH 3 TO 5 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.THURSDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 59.
MIN HUMIDITY........44 PERCENT.
WIND (20 FT)........VARIABLE 0 TO 3 MPH IN THE MORNING. SOUTH/
                    SOUTHEAST 3 TO 6 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 2000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 3 TO 7 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...GK
REQUESTED BY...CHAD LONG
TYPE OF REQUEST...PRESCRIBED
.TAG 20101020.PURTT.01/OTX