FNUS76 KPDT 040226
FWSPDT

SPOT FORECAST FOR DUPORTAIL CMD...BENTON COUNTY FIRE DISTRICT 1
NATIONAL WEATHER SERVICE PENDLETON OR
726 PM PDT SAT SEP 3 2011

FORECAST IS BASED ON REQUEST TIME OF 1834 PDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL CONTINUE TO BUILD OVER THE
AREA THIS WEEK.  LESS THAN 10 MPH WINDS ARE ANTICIPATED THIS WEEK AS
THERE ARE NO DISTURBANCES EMBEDDED IN THE RIDGE TO PRODUCE BREEZY OR
WINDY CONDITIONS. CLEAR SKIES ALL WEEK WILL GIVE LARGE DIURNAL
SWINGS IN TEMPERATURES PRODUCING VERY POOR MIXING HEIGHTS AT NIGHT
UNDER A STRONG INVERSIONS. DAYTIME MIXING HEIGHTS MAY ONLY BE
BETWEEN 3500 AND 6500 FEET THIS WEEK.

***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***

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0.
MIN TEMPERATURE.....51.
MAX HUMIDITY........55 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 2 TO 7 MPH.
RIDGETOP WIND.......NORTHEAST 8 TO 15 MPH. RATTLESNAKE RIDGE.
MIXING HEIGHT.......5500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 6 TO 10 MPH SHIFTING TO THE
                    NORTHEAST AROUND 3 TO 6 MPH AFTER MIDNIGHT.
LAL.................1.
HAINES INDEX........5 (MODERATE).

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0.
MAX TEMPERATURE.....90.
MIN HUMIDITY........10 PERCENT.
WIND (20 FT)........NORTH NORTHEAST 1 TO 3 MPH IN THE AFTERNOON.
RIDGETOP WIND.......WEST SOUTHWEST 8 TO 12 MPH. RATTLESNAKE RIDGE.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 3500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTH WINDS 3 TO 6 MPH IN THE MORNING
                    SHIFTING WEST IN THE AFTERNOON AND DECREASING 1
                    TO 4 MPH.
LAL.................1.
HAINES INDEX........5 (MODERATE).

$$
FORECASTER...DOUGLAS WEBER/ROGER CLOUTIER
REQUESTED BY...EROC AJ HILL
TYPE OF REQUEST...WILDFIRE
.TAG 20110903.DUPOR.01/PDT