FNUS75 KGJT 220515
FWSGJT

SPOT FORECAST FOR POWDERHORN...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1115 PM MDT SUN MAR 21 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MARCH 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE BREAKS DOWN THIS MORNING...WITH WESTERLY FLOW ALOFT
DEVELOPING OVER THE REGION BY THIS AFTERNOON. ANOTHER STORM WILL
MOVE INTO THE GREAT BASIN LATE TONIGHT AND TUESDAY...BRINGING
ANOTHER CHANCE FOR SHOWERS BY MIDDAY TUESDAY.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (30-40%).
MAX TEMPERATURE.....42-46 F.
MIN HUMIDITY........29-34%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 0-5 MPH UNTIL 1000...THEN
                    SOUTHWEST WINDS 3-6 MPH SHIFTING TO THE WEST
                    BY 1300 AND INCREASING TO 5-10 MPH. A FEW GUSTS
                    TO NEAR 20 MPH POSSIBLE BETWEEN 1400 AND 1800.
SMOKE DISPERSAL.....POOR (LESS THAN 20000 KNOT-FT) UNTIL 1000...THEN
                    BECOMING VERY GOOD BY 1300.
MIXING HEIGHT.......INCREASING TO 7000 FT AGL BY 1300.
TRANSPORT WINDS.....WEST 22 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50%) THEN BECOMING MOSTLY
                    CLOUDY (60-70%).
MIN TEMPERATURE.....18-23 F.
MAX HUMIDITY........63-68%.
WIND (20 FT)........SOUTHWEST WINDS 4-8 MPH UNTIL 2000...THEN BECOMING
                    DOWNSLOPE/DOWNVALLEY 2-5 MPH BY 2200.
SMOKE DISPERSAL.....GOOD UNTIL 2000...THEN DECREASING TO POOR
                    (LESS THAN 20000 KNOT-FT) BY 2200.
MIXING HEIGHT.......DROPPING TO 1000 FT AGL BY 2200.
TRANSPORT WINDS.....WEST 22 MPH.

.TUESDAY...

SKY/WEATHER.........CLOUDY (80-90%). NUMEROUS SHOWERS...MAINLY
                    AFTER 1100.
MAX TEMPERATURE.....32-37 F.
MIN HUMIDITY........50-55%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLY 2-5 MPH UNTIL 0900...THEN
                    SOUTHWEST TO WEST WINDS 5-10 MPH. GUSTS TO
                    NEAR 25 MPH NEAR SHOWERS.
SMOKE DISPERSAL.....POOR (LESS THAN 20000 KNOT-FT) UNTIL 0900...THEN
                    BECOMING VERY GOOD BY 1200. IN THE VICINITY OF
                    SHOWERS EXPECT EXCELLENT SMOKE DISPERSAL.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900...THEN RISING TO NEAR
                    9000 FT AGL BY 1200.
TRANSPORT WINDS.....WEST 16 MPH.

$$
FORECASTER...JEFF COLTON
REQUESTED BY...BRIAN STEVENS
TYPE OF REQUEST...PRESCRIBED
.TAG 20100322.POWDE.01/GJT