FNUS76 KSEW 251536
FWSSEW

SPOT FORECAST FOR UPPER WEIR SW...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
836 AM PDT MON JUL 25 2011

FORECAST IS BASED ON IGNITION TIME OF 0930 PDT ON JULY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL
WEATHER SERVICE IN SEATTLE.

.DISCUSSION...A THUNDERSTORM COULD DEVELOP AT ANY POINT OVERHEAD
THROUGH THE MORNING. A LINE OF SHOWERS ABOUT 40 MILES SOUTHWEST OF
THE BURN AREA WILL MOVE TO THE NORTHEAST ABOUT 15 TO 20
MPH...POTENTIALLY AFFECTING THE BURN AREA AROUND 1015 AM IF IT
HOLDS TOGETHER.

AN UPPER TROUGH WILL MOVE ONSHORE TODAY WITH PLENTY OF
INSTABILITY IN ADVANCE OF IT. THIS WILL CONTINUE TO GENERATE
SHOWERS AND SCATTERED THUNDERSTORMS THROUGH THE DAY AS IT SWINGS
THROUGH. AT THE SAME TIME IT WILL ALSO GENERATE AN ONSHORE PUSH OF
MARINE AIR...WITH A DECENT SOUTHWEST TO WEST BREEZE DEVELOPING.

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

.TODAY...

SKY/WEATHER.........CLOUDY. CHANCE OF THUNDERSTORMS THIS MORNING.
                    CHANCE OF SHOWERS THROUGH THE DAY.
CWR.................26 PERCENT.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........57 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH TO SOUTHWEST WINDS 5 TO 9 MPH WITH
                    OCCASIONAL GUSTS TO 18 MPH.
MIXING HEIGHT.......1300 FT AGL INCREASING TO 4700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH.
HAINES INDEX........3 OR VERY LOW.

.TONIGHT...

MIXING HEIGHT.......4700 FT AGL DECREASING TO 1400 FT AGL IN
                    THE EVENING.
TRANSPORT WINDS.....WEST AROUND 18 MPH.

$$
FORECASTER...CERNIGLIA
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110725.UPPER.01/SEW