FNUS75 KGJT 050432
FWSGJT

SPOT FORECAST FOR POWDERHORN...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1032 PM MDT SUN OCT 4 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A COLD FRONT SWEEPS OVER THE BURN SITE AROUND
SUNRISE MONDAY USHERING IN COOL AND MARGINALLY UNSTABLE AIR. AN
ISOLATED THUNDERSTORM IS POSSIBLE BUT NOT LIKELY. WINDS WILL SHIFT
TO WEST-SOUTHWEST AFTER THE FRONT PASSES. TEMPERATURES WILL BE
AROUND 10 DEGREES COOLER THAN SUNDAY. SHOWERS WILL END AROUND
SUNSET AND OVERNIGHT LOW TEMPERATURES WILL BE QUITE COOL. TUESDAY
WILL BE MORE STABLE AND DRIER WITH DIMINISHED WEST WINDS.

.MONDAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED SHOWERS.
                    ISOLATED AFTERNOON THUNDERSTORM POSSIBLE.
MAX TEMPERATURE.....44-48 F.
MIN HUMIDITY........45-50%.
20-FOOT WINDS.......SOUTHWEST 5-15 MPH WITH OCCASIONAL GUSTS
                    TO 30 MPH...SHIFTING TO WEST-NORTHWEST IN THE
                    AFTERNOON. ISOLATED GUSTS TO 45 MPH NEAR
                    SHOWERS AND STORMS.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......3000 FT AGL INCREASING TO 7700 FT AGL BY 1200.
                    HIGHER NEAR STORMS.
TRANSPORT WINDS.....SOUTHWEST 40 MPH.

.MONDAY NIGHT AFTER SUNSET...

SKY/WEATHER.........SHOWERS ENDING EARLY WITH PARTIAL CLEARING.
MIN TEMPERATURE.....22-27 F.
MAX HUMIDITY........78-84%.
20-FOOT WINDS.......NORTHWEST WINDS 3-8 MPH UNTIL 2000...BECOMING
                    DOWNVALLEY 2-5 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY (50-60%).
MAX TEMPERATURE.....47-52 F.
MIN HUMIDITY........23-28%.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...BRIAN STEVENS
TYPE OF REQUEST...PRESCRIBED
.TAG 20091005.POWDE.01/GJT