FNUS76 KSEW 201343
FWSSEW

SPOT FORECAST FOR LOWER WEIR PRAIRIE...FORT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
643 AM PDT THU AUG 20 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A SHALLOW LAYER OF MARINE CLOUDS PUSHED INLAND
THROUGH THE CHEHALIS GAP TO THE SOUTH PUGET SOUND AREA OVERNIGHT.
THE LOW CLOUDS WILL BURN OFF THIS MORNING FOR ANOTHER MOSTLY SUNNY
DAY TODAY. HIGH TEMPERATURES TODAY WILL BE 5 TO 10 DEGREES COOLER
THAN WEDNESDAY. MARINE AIR WILL PUSH INLAND MORE VIGOROUSLY TONIGHT.

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

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........41 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 7 MPH.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......700 FT AGL INCREASING TO 5600 FT AGL LATE IN
                    THE MORNING.
TRANSPORT WINDS.....SOUTHWEST AROUND 11 MPH.
HAINES INDEX........5 OR MODERATE.

.TONIGHT...

WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 3 TO 7 MPH.
MIXING HEIGHT.......5600 FT AGL DECREASING TO 1300 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH.

$$

FORECASTER...MCDONNAL
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090820.LOWER.01/SEW