FNUS75 KGJT 220427
FWSGJT

SPOT FORECAST FOR VIGIL AND ABEYTA...USFS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1027 PM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE OVER THE GREAT BASIN WEAKENS TODAY. A
WEAK DISTURBANCE WILL PASS THIS AFTERNOON BRINGING SLIGHTLY
INCREASED INSTABILITY. WELL ABOVE NORMAL TEMPERATURES WILL CONTINUE
TODAY AND THURSDAY...ADDING TO THE POTENTIAL FOR AN ISOLATED
AFTERNOON BUILDUP OVER THE HIGHER TERRAIN. GUSTY OUTFLOW WINDS ARE A
THREAT BOTH AFTERNOONS. GRADIENT SOUTHWEST WINDS INCREASE ON THURSDAY
AS A TROUGH OF LOW PRESSURE STRENGTHENS OVER THE PACIFIC NORTHWEST.

.TODAY (THROUGH SUNSET)...

SKY/WEATHER.........MOSTLY SUNNY (10-20%) THEN BECOMING PARTLY
                    CLOUDY (40-50%).
MAX TEMPERATURE.....63-68 F.
MIN HUMIDITY........12-17%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 5 MPH THROUGH 0900...
    THEN BECOMING UPSLOPE/UPVALLEY 4 TO 7 MPH BY 1100.
    AFTER 2000...WEST-SOUTHWEST WINDS 7 TO 12 MPH
    WITH OCCASIONAL GUSTS TO 18 MPH.
SMOKE DISPERSAL.....BECOMING EXCELLENT BY 1200.
MIXING HEIGHT.......RISING TO 11000 FT AGL BY 1400.
TRANSPORT WINDS.....DOWNSLOPE 5 MPH THROUGH 0900...THEN WEST 18 MPH
    BY 1200.

.TONIGHT (AFTER SUNSET)...

MIN TEMPERATURE.....28-33 F.
MAX HUMIDITY........50-55%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 5 MPH.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50%).
MAX TEMPERATURE.....63-68 F.
MIN HUMIDITY........12-17%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 5 MPH THROUGH 0900...
    THEN BECOMING UPSLOPE/UPVALLEY 4 TO 7 MPH BY 1100.
    AFTER 2000...WEST-SOUTHWEST WINDS 10 TO 15 MPH
    WITH OCCASIONAL GUSTS TO 25 MPH.

$$

FORECASTER...NORV LARSON
REQUESTED BY...SCOTT WAGNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090422.VIGIL.01/GJT