FNUS75 KGJT 070252
FWSGJT

SPOT FORECAST FOR HWY 90...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
852 PM MDT WED MAY 6 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A DRY WESTERLY FLOW WILL STRENGTHEN ON THURSDAY AND FRIDAY AS
ENERGY MOVES ACROSS THE NORTHERN TIER STATES. WESTERLY WINDS ARE
EXPECTED TO MIX DOWN TO THE SURFACE EACH AFTERNOON...WITH BREEZY
CONDITIONS DEVELOPING. THE TERRAIN MAY AGAIN MODIFY THE WESTERLY
FLOW RESULTING IN A SOUTHWEST DIRECTION AT THE BURN SITE. MIXING
WILL QUICKLY SUBSIDE AS THE SUN SETS AS THE SURFACE LAYER
DECOUPLES FROM THE FLOW ALOFT. TEMPERATURES ARE EXPECTED TO BE A
FEW DEGREES COOLER ON FRIDAY.

.TODAY (UNTIL SUNSET)...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....80-85 F.
MIN HUMIDITY........10-15%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH UNTIL 1000...
                    THEN BECOMING SOUTHWEST AFTER 1200. WINDS WILL
                    INCREASE TO 8-12 MPH AROUND 1300 WITH GUSTS
                    TO 25 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....BECOMING EXCELLENT BY 1300.
MIXING HEIGHT.......10700 FT AGL.
TRANSPORT WINDS.....WEST 23 MPH.

.TONIGHT (AFTER SUNSET)...

SKY/WEATHER.........MOSTLY CLEAR (20-30%).
MIN TEMPERATURE.....43-48 F.
MAX HUMIDITY........50-55%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH.
SMOKE DISPERSAL.....POOR (5500 KNOT-FT).
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 6 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30%) THEN BECOMING PARTLY
                    CLOUDY (40-50%).
MAX TEMPERATURE.....74-79 F.
MIN HUMIDITY........10-15%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH UNTIL 1000...
                    THEN BECOMING SOUTHWEST AFTER 1200. WINDS WILL
                    INCREASE TO 8-12 MPH BY 1300 WITH GUSTS
                    TO 25 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....BECOMING EXCELLENT BY 1300.
MIXING HEIGHT.......10200 FT AGL.
TRANSPORT WINDS.....WEST 20 MPH...BECOMING NORTHWEST 15 MPH AFTER
                    1800.

$$
FORECASTER...ELLEN HEFFERNAN
REQUESTED BY...MAPLE TAYLOR
TYPE OF REQUEST...PRESCRIBED
.TAG 20090507.HWY90.01/GJT