FNUS76 KOTX 301520
FWSOTX

SPOT FORECAST FOR BANGS F2...USFS - COLVILLE NATIONAL FOREST
NATIONAL WEATHER SERVICE SPOKANE WA
820 AM PDT THU SEP 30 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 PDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A STRONG RIDGE OF UPPER LEVEL HIGH PRESSURE WILL INTENSIFY OVER
THE PACIFIC NORTHWEST TODAY AND PERSIST INTO THE WEEKEND.
TEMPERATURES WILL BE VERY WARM TODAY...FRIDAY...AND SATURDAY.
HIGH TEMPERATURES WILL BE 10-14 DEGREES ABOVE AVERAGE. THE
STRONG HIGH PRESSURE RIDGE WILL ALSO BRING LIGHT SURFACE WINDS
AND LIGHT TRANSPORT WINDS TO THE BANGS F2 PROJECT...ALONG WITH
STRONG NIGHT TIME AND MORNING TEMPERATURE INVERSION. THE
COMBINATION OF STRONG INVERSIONS AND LIGHT TRANSPORT WINDS
COULD MAKE SMOKE DISPERSION FOR PRESCRIBED BURNS A CHALLENGE.

THANK YOU FOR THE OBSERVATIONS FROM YESTERDAY. THEY ARE HELPFUL.

.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....TOP ELEVATION...69.
                    BOTTOM ELEVATION...79.
MIN HUMIDITY........24-32 PERCENT.
WIND (20 FT)........NORTHEAST 0 TO 3 MPH IN THE MORNING...BECOMING
                    UPSLOPE/UPVALLEY 2 TO 5 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 2600 FT
                    AGL (ABOVE THE RIDGE ELEVATION) IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 3 TO 5 MPH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....RIDGE AND MID SLOPE...46-50.
                    BOTTOM ELEVATION...40-44.
MAX HUMIDITY........70-80 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH IN THE
                    EVENING...BECOMING NORTHEAST 0 TO 3 MPH.
MIXING HEIGHT.......BECOMING NEAR SURFACE BY 2000 PDT.
TRANSPORT WINDS.....NORTH 2 TO 6 MPH.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....TOP ELEVATION...70.
                    BOTTOM ELEVATION...80.
MIN HUMIDITY........27-35 PERCENT.
WIND (20 FT)........NORTHEAST 0 TO 3 MPH IN THE MORNING...BECOMING
                    UPSLOPE/UPVALLEY 2 TO 5 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE IN THE MORNING...BECOMING 2000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 2 TO 5 MPH IN THE MORNING...BECOMING
                    SOUTHWEST 3 TO 5 MPH LATE IN THE DAY.

$$
FORECASTER...GK
REQUESTED BY...SHANE ROBSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20100930.BANGS.01/OTX