FNUS76 KSEW 022211
FWSSEW

SPOT FORECAST FOR LANGILLE...USFS GIFFORD PINCHOT
NATIONAL WEATHER SERVICE SEATTLE WA
311 PM PDT SUN AUG 2 2009

FORECAST IS BASED ON REQUEST TIME OF 1536 MDT ON AUGUST 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...UPPER LEVEL HIGH PRESSURE RIDGING WILL CONTINUE TO
BE THE DOMINANT WEATHER FEATURE OVER THE LANGILLE FIRE THROUGH
MONDAY...BRINGING ANOTHER DAY OF WARMER AND DRIER CONDITIONS THAN
SEASONAL NORMS. THIS WILL ALSO KEEP THE THUNDERSTORM THREAT
CONFINED WELL SOUTH OF THE FIRE. ON TUESDAY...AN UPPER LOW OFF THE
CALIFORNIA COAST WILL START TO MOVE NORTHEAST WITH INCREASING
SOUTHERLY FLOW ALOFT. THIS WILL CAUSE A RISK OF LIGHTNING STARTING
WEDNESDAY WITH THE PEAK RISK ON THURSDAY.

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

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0%.
MAX TEMPERATURE.....86 AT BOTTOM OF FIRE...77 AT TOP.
MIN HUMIDITY........30 PERCENT AT BOTTOM...35 PERCENT AT TOP.
WIND (20 FT)........
 SLOPE/VALLEY.......IN THE YELLOWJACKET CREEK DRAINAGE...LIGHT
                    WIND BECOMING NORTH-NORTHWEST 5 TO 9 MPH BY
                    NOON. ON THE SOUTHEAST ASPECT...BECOMING UPSLOPE
                    5 TO 7 MPH BY LATE MORNING.
 RIDGE TOP..........LIGHT AND VARIABLE IN THE MORNING...BECOMING
                    NORTHWEST 8 MPH BY LATE AFTERNOON.
MIXING HEIGHT.......100 FT AGL INCREASING TO 5000 FT AGL LATE IN
                    THE MORNING.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
HAINES INDEX........MID-LEVEL....5 OR MODERATE.
                    HIGH-LEVEL...5 OR MODERATE.
LAL.................1.

.MONDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0%.
MIN TEMPERATURE.....52-55 VALLEY BOTTOM...57-60 IN AND ABOVE THE
                    THERMAL BELT.
MAX HUMIDITY........78-83 PERCENT VALLEY BOTTOM...55-60 PERCET IN
                    AND ABOVE THE THERMAL BELT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH-NORTHWEST UPVALLEY 4 TO 7 MPH EARLY IN
                    THE EVENING...BECOMING DOWNSLOPE/DOWNVALLEY
                    1 TO 3 MPH AROUND SUNSET.
 RIDGE TOP..........NORTH-NORTHWEST 5 TO 7 MPH...BECOMING LIGHT
                    AND VARIABLE BY LATE EVENING.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 100 FT AGL LATE IN
                    THE EVENING.
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH...BECOMING LIGHT.
HAINES INDEX........MID-LEVEL....5 OR MODERATE.
                    HIGH-LEVEL...5 OR MODERATE.
LAL.................1.

$$
FORECASTER...HANER
REQUESTED BY...RISA LANGE-NAVARRO
TYPE OF REQUEST...WILDFIRE
.TAG 20090802.LANGI.01/SEW