FNUS76 KPDT 131947
FWSPDT

SPOT FORECAST FOR BILLY BOB UNDERBURN...USFS MHF
NATIONAL WEATHER SERVICE PENDLETON OR
1247 PM PDT WED OCT 13 2010

FORECAST IS BASED ON IGNITION TIME OF 1230 PDT ON OCTOBER 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL INFLUENCE THE BURN SITE THROUGH
TOMORROW WITH SLIGHT WARMING AND DRYING. WARM AIR ALOFT WILL KEEP
MIXING HEIGHTS LOW WITH BETTER MIXING EXPECTED TOMORROW. THERMAL
TROUGH WILL SHIFT EAST OF THE CASCADES LATE TONIGHT AND TOMORROW
WITH TERRAIN DRIVEN WINDS BECOMING WESTERLY BY THURSDAY AFTERNOON.
APPROACHING COLD FRONT THURSDAY NIGHT WILL BRING INCREASING WINDS TO
THE CREST.

***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***FORECAST IS VALID FOR 12 HOURS AFTER ISSUANCE***

.REST OF TODAY...

SKY/WEATHER.........THIN HIGH CLOUDS.
CWR.................0.
MAX TEMPERATURE.....66.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........UPSLOPE WINDS 4 TO 8 MPH WITH OCCASIONAL GUSTS
                    TO 15 MPH.
RIDGETOP WIND.......SOUTHEAST 8 TO 12 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 8 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0.
MIN TEMPERATURE.....47.
MAX HUMIDITY........60 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 10 MPH EARLY IN THE EVENING
                    BECOMING DRAINAGE WINDS LESS THAN 5 MPH AROUND
                    SUNSET.
RIDGETOP WIND.......SOUTH 10 TO 14 MPH.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....LIGHT WINDS.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CWR.................0.
MAX TEMPERATURE.....71.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........UPSLOPE WINDS 4 TO 8 MPH BECOMING SOUTHWEST 5 TO
                    9 MPH WITH GUSTS TO 20 MPH AROUND NOON.
RIDGETOP WIND.......SOUTH 8 TO 13 MPH BECOMING SOUTHWEST 14 TO 18
                    MPH AFTER 1400.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 3500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 13 MPH IN
                    THE AFTERNOON.

$$
FORECASTER...JON BONK
REQUESTED BY...KAREN HALE
TYPE OF REQUEST...PRESCRIBED
.TAG 20101013.BILLY.01/PDT