FNUS75 KGJT 100532
FWSGJT

SPOT FORECAST FOR POWDERHORN...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1132 PM MDT FRI APR 9 2010

FORECAST IS BASED ON IGNITION TIME OF 1130 MDT ON APRIL 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH CLOUDS WILL SPREAD OVER THE AREA AS A WEAK
UPPER LEVEL DISTURBANCE BRUSHES WESTERN COLORADO. THIS DISTURBANCE
ALONG WITH PLENTY OF DAYTIME HEATING WILL RESULT IN GOOD
INSTABILITY BY THE AFTERNOON. THE FLOW ALOFT WILL CONTINUE TO BACK
AROUND TO THE SOUTHWEST...WITH SOUTHWEST BREEZES MIXING TO THE
SURFACE DURING THE AFTERNOON.


.SATURDAY (UNTIL SUNSET)...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING...THEN INCREASING
                    HIGH CLOUDS (40-50% CLOUD COVER BY 1500).
MAX TEMPERATURE.....52-56 F.
MIN HUMIDITY........15-20%.
WIND (20 FT)........DOWNSLOPE 3 TO 5 MPH THROUGH 0900...BECOMING
                    UPSLOPE 3 TO 6 MPH BY 1100...FINALLY SETTLING
                    IN AT SOUTHWEST 5 TO 10 MPH WITH OCCASIONAL
                    GUSTS TO 15 MPH AFTER 1400. WINDS BECOMING LIGHT
                    AND VARIABLE AFTER 1900.
SMOKE DISPERSAL.....BECOMING FAIR BY 1100...INCREASING TO EXCELLENT
                    AFTER 1300.
MIXING HEIGHT.......INCREASING TO 10000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 18 MPH.

.SATURDAY NIGHT (AFTER SUNSET)...

SKY/WEATHER.........PARTLY CLOUDY (40-50% THIN HIGH CLOUDS).
MIN TEMPERATURE.....21-26 F.
MAX HUMIDITY........54-59%.
WIND (20 FT)........DOWNSLOPE 3 TO 5 MPH.
SMOKE DISPERSAL.....POOR (4500 KNOT-FT).
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 5 MPH.

$$
FORECASTER...ELLEN HEFFERNAN
REQUESTED BY...BRIAN STEVENS
TYPE OF REQUEST...PRESCRIBED
.TAG 20100410.POWDE.01/GJT