FNUS76 KPDT 191736
FWSPDT

SPOT FORECAST FOR DRY CREEK 4...USFS WWF
NATIONAL WEATHER SERVICE PENDLETON OR
1036 AM PDT TUE APR 19 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 PDT ON APRIL 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...CUMULUS CLOUDS AND LIGHT SHOWER ACTIVITY WILL DEVELOP
THIS AFTERNOON AS A DISTURBANCE PASSES ACROSS NORTHEASTERN
WASHINGTON. INVERSION WILL LIKELY DISSIPATE BY IGNITION TIME WITH
GOOD MIXING HEIGHTS BY EARLY AFTERNOON. UNFORTUNATELY, SURFACE WINDS
AND WINDS ALOFT WILL BE ON THE LIGHTER SIDE RESULTING IN LITTLE
HORIZONTAL SMOKE TRANSPORT. INVERSION BEGINS SETTING UP AGAIN AROUND
SUNSET WITH A TOP AROUND 4500 FEET MSL. ANOTHER DISTURBANCE
APPROACHES FOR TOMORROW AFTERNOON BUT AM LESS CONFIDENT ON WINDS.

***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.........PARTLY CLOUDY. ISOLATED SNOW SHOWERS IN THE
                    AFTERNOON.
CWR.................10.
MAX TEMPERATURE.....49.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2 TO
                    5 MPH AFTER 1400.
RIDGETOP WIND.......SOUTHWEST 4 TO 8 MPH SHIFTING NORTHWEST AFTER
                    1300.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 7500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST 5 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0.
MIN TEMPERATURE.....26.
MAX HUMIDITY........81 PERCENT.
WIND (20 FT)........DRAINAGE WINDS LESS THAN 5 MPH.
RIDGETOP WIND.......NORTHWEST 4 TO 8 MPH SHIFTING SOUTHWEST
                    OVERNIGHT.
MIXING HEIGHT.......6500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    SUNSET.
TRANSPORT WINDS.....LIGHT WINDS.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
                    AFTERNOON.
CWR.................10.
MAX TEMPERATURE.....50.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........UPSLOPE LESS THAN 5 MPH SHIFTING TO THE
                    SOUTHEAST 7 TO 12 MPH IN THE AFTERNOON.
RIDGETOP WIND.......SOUTH 8 TO 12 MPH INCREASING TO 14 TO 18 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 4000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH INCREASING TO AROUND 20 MPH
                    IN THE AFTERNOON.

$$
FORECASTER...JON BONK
REQUESTED BY...STORY
TYPE OF REQUEST...PRESCRIBED
.TAG 20110419.DRYCR.01/PDT