FNUS75 KGJT 200908
FWSGJT

SPOT FORECAST FOR DAVENPORT PILE BURN...USFS ASHLEY NF
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
208 AM MST FRI NOV 20 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON NOVEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...RIDGE OVER THE AREA WILL LIMIT WINDS AND MIXING FOR
POOR SMOKE DISPERSION WHICH WILL CARRY OVER TONIGHT. AN APPROACHING
UPPER LEVEL TROF AND SURFACE COLD FRONT WILL GENERATE INCREASED
WINDS AND DEEPER MIXING SATURDAY AFTERNOON FOR BETTER DISPERSION.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....37-42 F.
MIN HUMIDITY........33-38%.
20-FOOT WINDS.......DOWNSLOPE 3 TO 5 MPH THROUGH 1000...THEN
    BECOMING SOUTH WINDS 4 TO 8 MPH.
CLEARING INDEX......100 INCREASING TO 300.
HAINES INDEX........3 VERY LOW.
LAL.................1.
MIXING HEIGHT.......RISING TO 1900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50%) THEN BECOMING MOSTLY
                    CLOUDY (60-70%).
MIN TEMPERATURE.....15-20 F.
MAX HUMIDITY........74-79%.
20-FOOT WINDS.......DOWNSLOPE 3 TO 5 MPH.
CLEARING INDEX......DECREASING TO 250 AFTER MIDNIGHT.
HAINES INDEX........3 VERY LOW.
LAL.................1.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY (60-70%). SCATTERED SHOWERS.
MAX TEMPERATURE.....29-34 F.
MIN HUMIDITY........42-47%.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO THE WEST
    IN THE AFTERNOON.
CLEARING INDEX......INCREASING TO 900 IN THE AFTERNOON.
HAINES INDEX........2 VERY LOW.
LAL.................1.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 4600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 20 MPH...BECOMING WEST IN THE
                    AFTERNOON.

$$

FORECASTER...NORV LARSON
REQUESTED BY...CHRIS DEETS
TYPE OF REQUEST...PRESCRIBED
.TAG 20091120.DAVEN.01/GJT