FNUS76 KSEW 201738
FWSSEW

SPOT FORECAST FOR SURVEY FLIGHT...USFS MT BAKER-SNOQUALMIE
NATIONAL WEATHER SERVICE SEATTLE WA
1038 AM PDT TUE APR 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...AFTER PLENTY OF ONSHORE FLOW THROUGH THURSDAY WITH
THE RESULTING LOW CLOUDS...THE FLOW IS EXPECTED TO BECOME WEAK
OFFSHORE THURSDAY NIGHT INTO FRIDAY WHICH SHOULD CLEAR OUT THE LOW
CLOUDS THURSDAY NIGHT. A WEAK FRONTAL SYSTEM IS EXPECTED TO
APPROACH THE REGION LATE IN THE DAY...BRINGING A THREAT OF SHOWERS
LATE IN THE AFTERNOON OR INTO THE EVENING HOURS.

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

.FRIDAY...

SKY/WEATHER.........PATCHY MORNING LOW CLOUDS...OTHERWISE PARTLY
                    SUNNY. INCREASING CLOUDS ABOVE 10000 FEET MSL.
                    A CHANCE OF SHOWERS LATE IN THE DAY.
CWR.................10%.
MAX TEMPERATURE.....AROUND 55 IN THE VALLEYS AND 45 AT 4000 FEET.
MIN HUMIDITY........55 PERCENT.
 LWR SLP/VALLEY.....EAST WINDS 4-8 MPH BECOMING WEST 6-12 MPH LATE.
RAINFALL AMOUNT.....0.05 INCHES.

$$
FORECASTER...CERNIGLIA
REQUESTED BY...RICH DAHL
TYPE OF REQUEST...PRESCRIBED
.TAG 20100423.SURVE.01/SEW