FNUS75 KGJT 142207
FWSGJT

SPOT FORECAST FOR SIMMS MESA...USFS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
407 PM MDT THU OCT 14 2010

FORECAST IS BASED ON IGNITION TIME OF 0700 MDT ON OCTOBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE OVER THE CENTRAL ROCKIES WILL SHIFT EAST INTO THE
PLAINS THIS WEEKEND AS A TROUGH OF LOW PRESSURE MOVES INTO THE
WESTERN UNITED STATES. THIS WILL BRING INCREASING SOUTHWESTERLY
FLOW ALOFT TO THE REGION...ALONG WITH WARMER TEMPERATURES. THIS WILL
HELP TO BREAK THE STRONG VALLEY INVERSIONS...RESULTING IN SLIGHTLY
IMPROVED MIXING BY LATE FRIDAY AND AGAIN ON SATURDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....63-68 F.
MIN HUMIDITY........17-22%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 0-5 MPH UNTIL 1100...THEN
                    BECOMING UPSLOPE/UPVALLEY 2-6 MPH BY 1300.
SMOKE DISPERSAL.....POOR (LESS THAN 20000 KNOT-FT) UNTIL 1100...THEN
                    BECOMING FAIR (45000 KNOT-FT) BY 1300.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......RISING TO 7600 FT AGL BY 1300.
TRANSPORT WINDS.....WEST 7 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (20-30%).
MIN TEMPERATURE.....27-32 F.
MAX HUMIDITY........86-91%.
20-FOOT WINDS.......BECOMING DOWNSLOPE/DOWNVALLEY 0-5 MPH BY 2100.
SMOKE DISPERSAL.....POOR (DROPPING TO LESS THAN 5000 KNOT-FT) BY 2100.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......DECREASING TO 1000 FT AGL BY 2100.
TRANSPORT WINDS.....NORTHWEST 5 MPH.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY (30-40%).
MAX TEMPERATURE.....64-68 F.
MIN HUMIDITY........23-28%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 0-5 MPH UNTIL 1100...THEN
                    BECOMING UPSLOPE/UPVALLEY 4-8 MPH BY 1300.
SMOKE DISPERSAL.....POOR (LESS THAN 30000 KNOT-FT) UNTIL 1100...THEN
                    BECOMING FAIR (47000 KNOT-FT) BY 1300.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......RISING TO 9400 FT AGL BY 1300.
TRANSPORT WINDS.....NORTHEAST 6 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.

$$

FORECASTER...JEFF COLTON
REQUESTED BY...RANDY CHAPPELL
TYPE OF REQUEST...PRESCRIBED
.TAG 20101015.SIMMS.01/GJT