FNUS75 KGJT 081504
FWSGJT

SPOT FORECAST FOR POWDERHORN...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
904 AM MDT THU APR 8 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL SLIDE ACROSS THE BURN AREA TODAY
WITH WEST WIND ALOFT. WINDS WILL GENERALLY BE TERRAIN-
DRIVEN...EXCEPT DURING PEAK HEATING WHEN MIXING SHOULD BRING WEST
WINDS DOWN TO THE SURFACE. EXPECT SMOKE TO SETTLE QUICKLY LATE
TODAY WHEN SHADOWS OVERTAKE THE SLOPE AND THE ATMOSPHERE STABILIZES.

.TODAY...

SKY/WEATHER.........SUNNY (0-10%) UNTIL 1300...THEN MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....43-47 F.
MIN HUMIDITY........20-24%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 5 MPH UNTIL 1000...THEN VARIABLE
                    BECOMING UPSLOPE/UPVALLEY 5-7 MPH BY 1300.
SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR.
MIXING HEIGHT.......1500-2000 FT AGL AT 1200 INCREASING TO 5000 FT AGL
                    BY 1500..
TRANSPORT WINDS.....WEST 10 MPH AT 1200 INCREASING TO 14 MPH BY 1500.

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10%).
MIN TEMPERATURE.....19-24 F.
MAX HUMIDITY........60-65%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 5 MPH.
SMOKE DISPERSAL.....POOR.
MIXING HEIGHT.......DECREASING TO 1000 FT AGL.
TRANSPORT WINDS.....BECOMING DOWNSLOPE/DOWNVALLEY 5 MPH BY 2100.

$$
FORECASTER...JIM DANIELS
REQUESTED BY...BRIAN STEVENS
TYPE OF REQUEST...PRESCRIBED
.TAG 20100408.POWDE.02/GJT