FNUS76 KSEW 231647
FWSSEW

SPOT FORECAST FOR JOHNSON PRAIRIE...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
947 AM PDT TUE AUG 23 2011

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON AUGUST 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...AN UPPER LEVEL RIDGE WILL BEGIN TO BUILD INTO THE AREA
TODAY SLOWLY DRYING OUT THE AIR MASS AND ALLOWING TEMPERATURES TO
RISE TO NORMAL LEVELS TODAY. DEWPOINTS ARE HIGHER THAN NORMAL FOR
THE NORTHWEST HOLDING HUMIDITY LEVELS UP A BIT TODAY FROM WHAT
WOULD NORMALLY BE EXPECTED. WINDS SHOULD REMAIN LIGHT OUT OF THE
SOUTHWEST TODAY...LIKELY TRENDING TOWARD MORE WESTERLY LATER THIS
AFTERNOON.

NOTE: POINT ENTERED INCORRECTLY ON WEB PAGE BUT I MADE THE FORECAST
FOR JOHNSON PRAIRIE

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

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY THROUGH THE MORNING THEN
                    INCREASING SUN THIS AFTERNOON.
CWR.................0%.
TEMPERATURE.........72 AT IGNITION...MAX 77.
RH..................66 PERCENT AT IGNITION...MIN 56 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 2 TO 5 MPH.
MIXING HEIGHT.......1400 FT AGL AT IGNITION INCREASING TO 3800 FT
                    AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 8 TO 10 MPH.
HAINES INDEX........3 OR VERY LOW.

.TONIGHT...

MIXING HEIGHT.......3800 FT AGL DECREASING TO 600 FT AGL THIS EVENING.
TRANSPORT WINDS.....WEST 5 TO 10 MPH BECOMING LIGHT.

$$
FORECASTER...CERNIGLIA
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110823.JOHNS.01/SEW