FNUS76 KSEW 191436
FWSSEW

SPOT FORECAST FOR RANGE 91...FT LEWIS FORESTRY
NATIONAL WEATHER SERVICE SEATTLE WA
736 AM PDT MON JUL 19 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A WEAK UPPER LEVEL TROUGH WILL MAINTAIN SEASONABLE
ONSHORE FLOW AND A STUBBORN MARINE LAYER OVER THE BURN AREA TODAY.
MARINE CLOUDS AND STRATUS WILL PERSIST AT THE 1200 PDT IGNITION
-TIME BUT SHOULD EVENTUALLY BURN OFF THIS AFTERNOON. DESPITE
MODERATE HAINES VALUES...STRONG STABILITY JUST ABOVE THE MIXED
LAYER WILL NEVER ALLOW THE FIRE TO TAP INTO THE PART OF THE
ATMOSPHERE USED TO CALCULATE HAINES...SO IT IS AN IRRELEVANT
INDICATOR FOR TODAY.

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

.TODAY...

SKY/WEATHER.........CLOUDY AT IGNITION TIME...BECOMING SUNNY
                    AROUND 1400-1500 PDT.
CWR.................0%.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........46 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 4 TO 6 MPH THIS AFTERNOON.
MIXING HEIGHT.......INCREASING TO 3400 FT AGL THIS AFTERNOON.
                    VERY STABLE ABOVE THE MIXED LAYER.
TRANSPORT WINDS.....NORTH-NORTHWEST AROUND 5 MPH.
HAINES INDEX........MID-LEVEL....5 OR MODERATE.
                    HIGH-LEVEL...5 OR MODERATE.

.TONIGHT...

MIN TEMPERATURE.....AROUND 47.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 3 TO 5 MPH EARLY THIS
                    EVENING...BECOMING NEARLY CALM AFTER SUNSET.
MIXING HEIGHT.......3400 FT AGL DECREASING TO 0 FT AGL LATE IN THE
                    EVENING.
TRANSPORT WINDS.....NORTH AROUND 4 MPH.

$$
FORECASTER...HANER
REQUESTED BY...DAN LEEPER
TYPE OF REQUEST...PRESCRIBED
.TAG 20100719.RANGE.01/SEW