FNUS76 KSEW 231501
FWSSEW

SPOT FORECAST FOR TA-15...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
801 AM PDT MON AUG 23 2010

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 QUICKLY RE-BUILD OVER THE
AREA TODAY WITH A LIGHT NORTHERLY FLOW DEVELOPING DURING THE
AFTERNOON HOURS. TODAY WILL BE A NORMAL LATE SUMMER DAY WITH RESPECT
TO TEMPERATURES...HUMIDITY VALUES AND WINDS.

TONIGHT A LIGHT OFFSHORE FLOW WILL HAVE DEVELOPED WITH A LIGHT
NORTHEAST SURFACE WIND AND SOMEWHAT STRONGER NORTHEAST TRANSPORT
WINDS. THIS WILL RESULT IN CLEAR SKIES...SLIGHTLY WARMER LOW
TEMPERATURES AND LOWER MAXIMUM RELATIVE HUMIDITIES.

A RATHER STRONG COLD FRONT IS EXPECTED TO CROSS THE REGION LATER
THURSDAY...USHERING IN COOLER AND MORE MOIST AIR MASS THAT WILL
LINGER INTO NEXT WEEKEND.  THIS FEATURE IS ALSO EXPECTED TO GENERATE
STRONG WEST WINDS ACROSS A LARGE PART OF EASTERN WASHINGTON
INCLUDING ZONE 662 LATE IN THE DAY.

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

.TODAY...

SKY/WEATHER.........A FEW EARLY MORNING LOW CLOUDS OTHERWISE SUNNY.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........39 PERCENT.
WIND (20 FT)........LIGHT WIND BECOMING NORTH 3 TO 6 MPH BY EARLY
                    AFTERNOON.
MIXING HEIGHT.......800 FT AGL INCREASING TO 4400 FT AGL LATE IN
                    THE MORNING.
TRANSPORT WINDS.....NORTHEAST 5 TO 8 MPH.
HAINES INDEX........3 OR VERY LOW.

.TONIGHT...

MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........82 PERCENT.
WIND (20 FT)........NORTH WINDS 3 TO 6 MPH.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 700 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
HAINES INDEX........4 OR LOW.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY...
MOSTLY CLEAR. LOWS AROUND 50. HIGHS AROUND 80. NORTHWEST WINDS
AROUND 3 MPH.
.THURSDAY...
COOLER. MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
WEST WINDS 3 TO 5 MPH.
.FRIDAY...
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. WEST
WINDS 3 TO 7 MPH.

$$
FORECASTER...CERNIGLIA
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20100823.TA15_.01/SEW