FNUS76 KOTX 021803 CCA
FWSOTX

SPOT FORECAST FOR PRESTON FOX UNDERBURN...CWICC
NATIONAL WEATHER SERVICE SPOKANE WA
1103 AM PDT FRI OCT 2 2009

FORECAST IS BASED ON IGNITION TIME OF 1020 PDT ON OCTOBER 02.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

AN UPPER LEVEL TROUGH WILL TAKE UP POSITION OVER THE INLAND
NORTHWEST TONIGHT AND BE THE MAIN WEATHER PRODUCER THROUGH THE
WEEKEND. ENOUGH INSTABILITY REMAINS OVER THE BURN SITE TODAY FOR
SOME AFTERNOON CONVECTION AND WITH SNOW LEVELS RIGHT AROUND 4500-5000
FEET THESE SHOWERS WILL ALMOST CERTAINLY CONTAIN HAIL/GRAUPEL. THE
UPPER TROUGH SAGS SOUTH ON SATURDAY AND THIS WILL OPEN THE DOOR FOR
MOISTURE TO WRAP AROUND ALL THE WAY BACK TO THE CASCADES BY LATE
SATURDAY AFTERNOON/SATURDAY NIGHT. EXPECT INCREASING CHANCES OF RAIN
BY LATE SATURDAY AFTERNOON. THINGS BEGIN TO DRY OUT SUNDAY AFTERNOON
AND NEXT WEEK AS HIGH PRESSURE NOSES INTO THE REGION FROM THE WEST.

.TODAY...

SKY/WEATHER.........SUNNY IN THE MORNING. A SLIGHT CHANCE OF RAIN
                    OR SNOW SHOWERS IN THE AFTERNOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....50.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......BECOMING 3000 FT AGL AFTER 1200.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
LAL.................1.
HAINES INDEX........2 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
                    IN THE EVENING. SLIGHT CHANCE OF SNOW SHOWERS
                    THROUGH THE NIGHT.
CWR.................10 PERCENT.
MIN TEMPERATURE.....36.
MAX HUMIDITY........83 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.SATURDAY...

SKY/WEATHER.........CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS
                    THROUGH THE DAY.
CWR.................10 PERCENT.
MAX TEMPERATURE.....48.
MIN HUMIDITY........42 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 6 MPH.
MIXING HEIGHT.......BECOMING 3500 FT AFTER 1200.
TRANSPORT WINDS.....NORTH 8 TO 12 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...BT
REQUESTED BY...CWICC
TYPE OF REQUEST...PRESCRIBED
.TAG 20091002.PREST.01/OTX