FNUS75 KGJT 030533
FWSGJT

SPOT FORECAST FOR WEST VAIL PILES...USFS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1033 PM MST TUE FEB 2 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON FEBRUARY 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A TROUGH OF LOW PRESSURE WILL BE MOVING ACROSS THE GREAT BASIN AND
INTO WESTERN COLORADO WEDNESDAY NIGHT AND THURSDAY. AS THIS SYSTEM
APPROACHES...SOUTHWEST FLOW ALOFT WILL STRENGTHEN OVER THE BURN
SITE...WITH VALLEY INVERSION HOLDING THROUGH THE DAY. BY THURSDAY...
THE WINDS ALOFT WILL BECOME MORE WESTERLY...WITH VALLEY INVERSIONS
BREAKING AS AREAS OF SNOW DEVELOP OVER THE HIGHER TERRAIN.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (50-60%) THEN BECOMING MOSTLY
                    CLOUDY (70-80%).
MAX TEMPERATURE.....31-36 F.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 0-4 MPH UNTIL 11000...THEN
                    WINDS SHIFTING TO THE WEST AT 2-6 MPH BY 1400.
SMOKE DISPERSAL.....POOR (LESS THAN 10000 KNOT-FT)
MIXING HEIGHT.......RISING TO NEAR 2000 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTHWEST 10 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80%). ISOLATED SHOWERS.
MIN TEMPERATURE.....14-19 F.
WIND (20 FT)........WINDS BECOMING DOWNSLOPE/DOWNVALLEY 0-4 MPH BY
                    1800...BEFORE SHIFTING TO THE SOUTHWEST AND
                    INCREASING TO 4-8 MPH BY 0100.
SMOKE DISPERSAL.....POOR (LESS THAN 10000 KNOT-FT)
MIXING HEIGHT.......LOWERING TO 1000 FT AGL BY 1800.
TRANSPORT WINDS.....SOUTH 10 MPH.

.THURSDAY...

SKY/WEATHER.........CLOUDY (80-90%). SCATTERED SHOWERS IN THE
                    MORNING...THEN NUMEROUS SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....28-33 F.
WIND (20 FT)........SOUTH WINDS 5 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....POOR (LESS THAN 24000 KNOT-FT)...EXCEPT
                    EXCELLENT IN THE VICINITY OF SHOWERS.
MIXING HEIGHT.......RISING TO 3400 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTHEAST 3-6 MPH SHIFTING TO THE WEST 4-8 MPH
                    BY 1400.

$$
FORECASTER...JEFF COLTON
REQUESTED BY...NICK COLLARD
TYPE OF REQUEST...PRESCRIBED
.TAG 20100203.WESTV.01/GJT