FNUS76 KOTX 181324
FWSOTX

SPOT FORECAST FOR TUMWATER CANYON...CWICC
NATIONAL WEATHER SERVICE SPOKANE WA
624 AM PDT THU AUG 18 2011

FORECAST IS BASED ON REQUEST TIME OF 2350 PDT ON AUGUST 17.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE PRESSURE GRADIENT OVER THE CASCADES HAS WEAKENED CONSIDERABLY
SINCE YESTERDAY...AND THE WIND WILL BE MAINLY TERRAIN DRIVEN
TODAY...TONIGHT...AND TOMORROW. RELATIVE HUMIDITY LEVELS WILL ALSO
BE ABOUT 10 PERCENT HIGHER THAN YESTERDAY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. HIGH THIN CLOUDS.
CWR.................0 PERCENT.
MAX TEMPERATURE.....82 BOTTOM ELEVATION. 76 TOP ELEVATION.
MIN HUMIDITY........24 TO 29 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH BECOMING UP SLOPE/UP VALLEY
                    3 TO 5 MPH BY 1000 PDT.
MIXING HEIGHT.......INCREASING TO 7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 4 TO 6 MPH...BECOMING SOUTHWEST 5 TO 8 MPH
                    IN THE AFTERNOON.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....53.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 3 TO 7 MPH.
MIXING HEIGHT.......DECREASING TO 100 FT AGL OVERNIGHT.
TRANSPORT WINDS.....WEST 8 TO 12 MPH.
LAL.................1.
HAINES INDEX........3 VERY LOW.

.FRIDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....84 BOTTOM ELEVATION. 78 TOP ELEVATION.
MIN HUMIDITY........25 TO 50 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH IN THE MORNING BECOMING
                    UP SLOPE/UP VALLEY 3 TO 5 MPH IN THE AFTERNOON.
MIXING HEIGHT.......BECOMING 7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 2 TO 5 MPH IN THE MORNING BECOMING
                    VARIABLE 0 TO 4 MPH IN THE AFTERNOON.
LAL.................1.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...GK
REQUESTED BY...CWICC
TYPE OF REQUEST...WILDFIRE
.TAG 20110817.TUMWA.01/OTX