FNUS76 KPDT 201322
FWSPDT

SPOT FORECAST FOR MET BASIN 4...USFS
NATIONAL WEATHER SERVICE PENDLETON OR
622 AM PDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.


.DISCUSSION...HIGH PRESSURE REMAINS OVER THE AREA TODAY. STRONG
MORNING INVERSIONS CONTINUE TO LEAD TO POOR MIXING HEIGHTS. A
WEATHER DISTURBANCE WILL BRING A SLIGHT CHANCE OF RAIN TO THE AREA
THURSDAY NIGHT...WITH CHANCES OF RAIN INCREASING THROUGHOUT THE
WEEKEND. LIGHT PRESSURE GRADIENTS DO FAVOR AN EASTERLY WIND.
HOWEVER...WEST ASPECT SHOULD CREATE A BARRIER IN WHICH UPSLOPE WINDS
WILL BE DOMINANT.

***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***

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0.
MAX TEMPERATURE.....71.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........UPSLOPE LESS THAN 5 MPH.
RIDGETOP WIND.......EAST WIND 3 TO 5 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH IN
                    THE AFTERNOON.

        TEMPERATURE     HUMIDITY     20-FT WIND (MPH)
1000        52             42           W 1-3 MPH
1200        60             31           W 2-4 MPH
1400        67             24           W 2-4 MPH
1600        69             22           W 3-5 MPH
1800        55             37           W 0-2 MPH
2000        52             40           E 0-2 MPH

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0.
MIN TEMPERATURE.....39.
MAX HUMIDITY........69 PERCENT.
WIND (20 FT)........DRAINAGE WINDS LESS THAN 5 MPH.
RIDGETOP WIND.......WEST SOUTHWEST 3 TO 5 MPH.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....WEST SOUTHWEST 3 TO 5 MPH AFTER MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0.
MAX TEMPERATURE.....69.
MIN HUMIDITY........28-32 PERCENT.
WIND (20 FT)........SOUTH SOUTHWEST WINDS 2 TO 5 MPH.
RIDGETOP WIND.......SOUTH SOUTHWEST SOUTHWEST 2 TO 5 MPH.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 4000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH SOUTHWEST 4 TO 6 MPH.

$$
FORECASTER...GEORGE PERRY/DOUGLAS WEBER
REQUESTED BY...COIDC
TYPE OF REQUEST...PRESCRIBED
.TAG 20101020.METBA.01/PDT