FNUS76 KSEW 191031
FWSSEW

SPOT FORECAST FOR ONE MILE...NPS NORTH CASCADES
NATIONAL WEATHER SERVICE SEATTLE WA
331 AM PDT SUN JUL 19 2009

FORECAST IS BASED ON REQUEST TIME OF 2111 PDT ON JULY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN SEATTLE.

.DISCUSSION...A MODERATE WEST TO NORTHWEST FLOW ACROSS THE
CASCADES WILL INFLUENCE THE WIND TODAY. THIS WILL ENHANCE THE
UPSLOPE WINDS AS THE FLOW MOVES DOWN THE LAKE AND SWINGS INTO THE
ONE MILE CREEK DRAINAGE. BATTLING WINDS WILL LIKELY OCCUR NEAR THE
RIDGE TOP AS WEST RIDGE TOPS WINDS INTERACT WITH THE UPSLOPE FLOW.
MONDAY ONWARD THE LOCAL WINDS WILL BE DIURNALLY TERRAIN DRIVEN.

AN UPPER LEVEL HIGH PRESSURE RIDGE WILL QUICKLY BUILD OVER THE
PACIFIC NORTHWEST MONDAY...STRENGTHENING FURTHER TOWARD THE END
OF THE COMING WEEK. IF CURRENT MODEL FORECASTS ARE CORRECT...HIGH
TEMPERATURES WILL BE THE WARMEST SO FAR THIS YEAR.

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

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0%.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE 6 TO 10 MPH WITH GUSTS TO 20 MPH MID
                    TO LATE AFTERNOON.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 3800 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
HAINES INDEX........3 OR VERY LOW.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0%.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........55 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......BECOMING DOWNSLOPE 3 TO 5 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL IN THE EVENING.
TRANSPORT WINDS.....NORTHWEST AROUND 7 MPH.
HAINES INDEX........3 OR VERY LOW.
LAL.................1.

.MONDAY...

SKY/WEATHER.........SUNNY.
CWR.................0%.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......UPSLOPE 4 TO 7 MPH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 6400 FT AGL LATE IN THE
                    MORNING.
TRANSPORT WINDS.....LIGHT WIND.
HAINES INDEX........3 OR VERY LOW.
LAL.................1.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 80S.
FREEZING LEVEL 14100 FEET. UPSLOPE WINDS 4 TO 7 MPH.
.WEDNESDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS AROUND 90. FREEZING
LEVEL 14400 FEET. UPSLOPE WINDS 4 TO 7 MPH.
.THURSDAY...
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.
FREEZING LEVEL 14900 FEET. UPSLOPE WINDS AROUND 9 MPH...BATTLING
NEAR THE RIDGE TOP.
.FRIDAY AND SATURDAY...
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 50S. HIGHS IN THE UPPER
80S TO MID 90S. FREEZING LEVEL AROUND 14000 FEET.

$$
FORECASTER...CERNIGLIA
REQUESTED BY...LESHA HASTINGS-SKAER
TYPE OF REQUEST...WILDFIRE
.TAG 20090718.ONEMI.01/SEW