FNUS76 KSEW 190121
FWSSEW

SPOT FORECAST FOR RICHERT...NPS OLYMPIC
NATIONAL WEATHER SERVICE SEATTLE WA
621 PM PDT WED AUG 18 2010

FORECAST IS BASED ON REQUEST TIME OF 1758 PDT ON AUGUST 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A MARINE LAYER OVER WESTERN WASHINGTON REMAINS BELOW
ABOUT 4000 FEET. IT IS EXPECTED TO DEEPEN SOMEWHAT TONIGHT INTO
THURSDAY...WHICH WILL AFFECT A LARGER AREA IN THE MOUNTAINS. EXPECT
COOLER AND MORE HUMID CONDITIONS DUE TO THE MARINE INFLUENCE.

A RATHER DEEP AND COOL UPPER TROUGH WILL SETTLE OVER THE REGION THIS
WEEKEND FOR MUCH BELOW NORMAL TEMPERATURES...HIGHER HUMIDITIES...
AND A CHANCE OF SHOWERS...MAINLY OVER THE MOUNTAINS ON SUNDAY.
THIS TROUGH WILL EXIT THE REGION ON MONDAY FOR A RETURN TO MORE
SEASONAL TEMPERATURES EARLY NEXT WEEK.

 FORECAST FOR 20 FOOT WIND SPEED (VALLEYS AND RIDGE TOPS) ARE 10
 MINUTE AVERAGES REFLECTING RAWS WINDS.

.TONIGHT...
CWR.................0%.
MIN TEMPERATURE.....NEAR 53.
MAX HUMIDITY........NEAR 100 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....NEAR CALM...EXCEPT SOUTHWEST 2 TO 7 MPH AT THE
                    TOP OF THE FIRE.
HAINES INDEX........4 OR LOW.
LAL.................1.

.THURSDAY...
CWR.................0%.
MAX TEMPERATURE.....NEAR 67.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....SOUTHWEST WIND 1 TO 4 MPH...EXCEPT 5 TO 10 MPH
                    AT THE TOP OF THE FIRE.
HAINES INDEX........4 OR LOW.
LAL.................1.

$$

FORECASTER...05
REQUESTED BY...LINDA N  SHAFFER
TYPE OF REQUEST...WILDFIRE
.TAG 20100818.RICHE.01/SEW