FNUS76 KSEW 311856
FWSSEW

SPOT FORECAST FOR DEER FLATS...WASHINGTON DNR
NATIONAL WEATHER SERVICE SEATTLE WA
1156 AM PDT MON AUG 31 2009

FORECAST IS BASED ON REQUEST TIME OF 1226 MDT ON AUGUST 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...SOUTHERLY FLOW ALOFT WILL INCREASE OVER THE FIRE
TODAY AND TUESDAY. THIS WILL CAUSE A SLOW WARMING TREND AND ENOUGH
INCREASE OF INSTABILITY FOR A THUNDERSTORM RISK ALONG THE CASCADE
CREST ON TUESDAY. CURRENT THINKING IS THAT ANY ISOLATED
THUNDERSTORMS SHOULD REMAIN EAST OF THE FIRE...SO THUNDERSTORMS
ARE NOT INCLUDED IN THIS FORECAST FOR DEER FLATS. OTHERWISE...
AFTERNOON WINDS WILL BE RULED BY UPVALLEY INFLUENCES AS WIND
COMING UP THE SKYKOMISH RIVER VALLEY ROUNDS THE BEND TO HEAD UP
THE NORTH FORK. NIGHTTIME WINDS SHOULD BE NEARLY CALM.

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

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR (>0.25")........0%.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........SOUTHWEST-WEST WINDS 4 TO 7 MPH.
MIXING HEIGHT.......RISING TO 2000 FT AGL THIS AFTERNOON.
TRANSPORT WINDS.....WEST-NORTHWEST AROUND 6 MPH.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR (>0.25")........0%.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........EXCELLENT RECOVERY...96 PERCENT.
WIND (20 FT)........WEST-SOUTHWEST WINDS 3 TO 6 MPH EARLY THIS
                    EVENING...BECOMING NEARLY CALM AFTER SUNSET.
MIXING HEIGHT.......3700 FT AGL DECREASING TO 200 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....BECOMING CALM.
LAL.................1.

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY. AFTERNOON CUMULUS BUILDUPS
                    SHOULD BE SEEN JUST EAST OF THE FIRE.
CWR (>0.25")........5%.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........54 PERCENT.
WIND (20 FT)........CALM WIND IN THE MORNING...BECOMING SOUTHWEST-
                    WEST 4 TO 6 MPH AFTER 1100 PDT.
MIXING HEIGHT.......200 FT AGL IN THE MORNING...RISING TO 1400 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST WIND AROUND 5 MPH.
LAL.................1.

$$
FORECASTER...HANER
REQUESTED BY...BECKY DOLAN
TYPE OF REQUEST...WILDFIRE
.TAG 20090831.DEERF.01/SEW