FNUS75 KGJT 220528
FWSGJT

SPOT FORECAST FOR POWDERHORN...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1128 PM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 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. MUCH 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.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30%) THEN BECOMING PARTLY
                    CLOUDY (40-50%).
MAX TEMPERATURE.....60-62 F.
MIN HUMIDITY........18-21%.
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH AT 1100...SHIFTING TO WEST
                    8-12 MPH WITH GUSTS TO AROUND 25 MPH. HIGHER GUSTS
                    POSSIBLE NEAR LATE AFTERNOON VIRGA
SMOKE DISPERSAL.....FAIR UNTIL 1200...THEN EXCELLENT.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......3000 FT AGL AT 1100...RISING TO 7000 FT AGL BY
                    1300.
TRANSPORT WINDS.....WEST 21 MPH.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...BRIAN STEVENS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090422.POWDE.01/GJT