FNUS76 KPDT 040134
FWSPDT

SPOT FORECAST FOR SHADOW LAKE...USFS DEF
NATIONAL WEATHER SERVICE PENDLETON OR
634 PM PDT SAT SEP 3 2011

FORECAST IS BASED ON REQUEST TIME OF 1805 PDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING FOR VERY DRY AND UNSTABLE CONDITIONS FOR
PORTIONS OF THE FIRE THAT ARE WEST OF THE CASCADE CREST...

.DISCUSSION...UPPER HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE
REGION ON SUNDAY AND MONDAY. THIS WILL RESULT IN A CONTINUED WARMING
TREND WITH VERY DRY CONDITIONS. A SURFACE THERMALLY INDUCED LOW
PRESSURE AREA HAS FORMED WEST OF THE CASCADE CREST TODAY CAUSING
EASTERLY WINDS THIS AFTERNOON AND EVENING. THESE WILL PERSIST
THROUGH AT LEAST SUNDAY NOON AND THEN THE THERMAL LOW WILL SHIFT
EAST OF THE CASCADES. CURRENTLY VERY DRY AIR COMBINED WITH
INSTABILITY HAS RESULTED IN RED FLAG CONDITIONS WEST OF THE CASCADE
CREST. RED FLAG CONDITIONS ARE NOT EXPECTED EAST OF THE CASCADE
CREST AT THIS TIME.

***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. AREAS OF SMOKE.
CWR.................0.
MIN TEMPERATURE.....41-43.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........EAST TO SOUTHEAST WINDS 3 TO 8 MPH...BECOMING
                    DRAINAGE 1 TO 5 MPH OVERNIGHT.
RIDGETOP WIND.......EAST TO SOUTHEAST WINDS 7 TO 14 MPH DECREASING
                    TO 3 TO 8 MPH OVERNIGHT.
LAL.................1.
HAINES INDEX........5 (MODERATE).

.SUNDAY...

SKY/WEATHER.........SUNNY. AREAS OF SMOKE IN THE MORNING.
CWR.................0.
MAX TEMPERATURE.....74-78.
MIN HUMIDITY........15-18 PERCENT.
WIND (20 FT)........DRAINAGE 1 TO 5 MPH EARLY IN THE MORNING
                    BECOMING EAST TO SOUTHEAST 3 TO 8 MPH BY
                    NOON...AND THEN SHIFTING TO SOUTHWEST TO WEST 5
                    TO 10 MPH BY 5 PM.
RIDGETOP WIND.......SOUTHEAST 2 TO 6 EARLY INCREASING TO 5 TO 10 MPH
                    BY NOON AND THEN SHIFTING TO SOUTHWEST TO WEST 8
                    TO 15 MPH BY 5 PM.
LAL.................1.
HAINES INDEX........5 (LOW).

.SUNDAY NIGHT...

SKY/WEATHER.........CLEAR. AREAS OF SMOKE.
CWR.................0.
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........48-52 PERCENT.
WIND (20 FT)........BECOMING WEST TO NORTHWEST 4 TO 9 MPH IN THE
                    EARLY EVENING...THEN DRAINAGE 2 TO 6 MPH BY
                    MIDNIGHT.
RIDGETOP WIND.......NORTHWEST 6 TO 12 MPH IN THE EARLY EVENING
                    DECREASING TO NORTHWEST TO NORTH 3 TO 8 MPH
                    OVERNIGHT.
LAL.................1.
HAINES INDEX........5 (MODERATE).

.LABOR DAY...

SKY/WEATHER.........SUNNY. AREAS OF SMOKE IN THE MORNING.
CWR.................0.
MAX TEMPERATURE.....75-79.
MIN HUMIDITY........13-17 PERCENT.
WIND (20 FT)........DRAINAGE 1 TO 5 MPH EARLY MORNING BECOMING EAST
                    TO SOUTHEAST 2 TO 7 MPH BY NOON...AND THEN
                    NORTHWEST 4 TO 9 MPH BY 5 PM.
RIDGETOP WIND.......NORTHWEST 2 TO 7 MPH EARLY INCREASING TO 7 TO 14
                    MPH BY AFTERNOON.
LAL.................1.
HAINES INDEX........5 (LOW).

$$

FORECASTER...ROGER CLOUTIER
REQUESTED BY...TODD RANKIN
TYPE OF REQUEST...WILDFIRE
.TAG 20110903.SHADO.02/PDT