FNUS76 KPDT 071722
FWSPDT

SPOT FORECAST FOR COTTONWOOD CREEK...USFS MAF
NATIONAL WEATHER SERVICE PENDLETON OR
1022 AM PDT WED SEP 7 2011

FORECAST IS BASED ON REQUEST TIME OF 0954 PDT ON SEPTEMBER 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE IN PLACE, HOWEVER, SOME MID-LEVEL
MOISTURE AND LOW LEVEL INSTABILITY WILL RESULT IN CUMULUS BUILDUPS
AND POSSIBLY A THUNDERSTORM TODAY. RAIN AMOUNTS WILL BE MINIMAL.
MAIN CONCERN WILL BE AN APPROACHING THERMAL TROUGH, VERY DRY
HUMIDITY, AND AN INCREASE IN VENTILATION FOR THE NEXT FEW DAYS. ALSO
EXPECT CONTINUED POOR HUMIDITY RECOVERY. HAINES 5 CONDITIONS FROM
STABILITY COMPONENT 3.

***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. A SLIGHT CHANCE OF A
                    THUNDERSTORM.
CWR.................5 PERCENT.
MAX TEMPERATURE.....88.
MIN HUMIDITY........14 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING TERRAIN DRIVEN 4 TO 8 MPH
                    AROUND NOON.
RIDGETOP WIND.......SOUTHEAST TO SOUTH WINDS 6 TO 10 MPH.
MIXING HEIGHT.......9000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 8 MPH.
LAL.................2.
HAINES INDEX........5 (MODERATE).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF A
                    THUNDERSTORM IN THE EVENING.
CWR.................5 PERCENT.
MIN TEMPERATURE.....53.
MAX HUMIDITY........35 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 3 TO 7 MPH.
RIDGETOP WIND.......SOUTHEAST TO SOUTH 7 TO 10 MPH.
MIXING HEIGHT.......7000 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHEAST AROUND 9 MPH BECOMING LIGHT OVERNIGHT.
LAL.................2.
HAINES INDEX........5 (MODERATE).

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS
                    IN THE AFTERNOON.
CWR.................0.
MAX TEMPERATURE.....89.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........TERRAIN DRIVEN 2 TO 6 MPH BECOMING NORTH WINDS 3
                    TO 8 MPH AFTER 1500.
RIDGETOP WIND.......EAST 3 TO 6 MPH SHIFTING NORTH 8 TO 11 MPH
                    AROUND 1400.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 10000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 8 MPH BECOMING NORTH AFTER 1500.
LAL.................2.
HAINES INDEX........5 (MODERATE).

$$
FORECASTER...JON BONK
REQUESTED BY...PAM ARBOGAST
TYPE OF REQUEST...WILDFIRE
.TAG 20110907.COTTO.01/PDT