FNUS75 KGJT 081455
FWSGJT

SPOT FORECAST FOR YELLOW PINE...USFS GUNNISON
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
855 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 OVERHEAD TODAY PRODUCED A SUBSIDENCE
INVERSION AT ABOUT 12,000 FT MSL. FORECAST MODELS INDICATE THE
SITE WILL MIX TO THE BOTTOM OF THAT INVERSION THIS AFTERNOON. THE
SNOW FIELD TO THE NORTH OF THE BURN SITE WILL LIKELY KEEP WINDS
FROM BECOMING UPSLOPE. SO DOWNSLOPE WINDS WILL TRANSITION TO
GRADIENT WEST WINDS THIS AFTERNOON. WATCH FOR OCCASIONAL COOLER
NORTHWEST-NORTH WINDS OFF OF THE SNOW FIELD. THE MIXING WILL
QUICKLY COLLAPSE BEFORE SUNSET.

FRIDAY...SOUTHWEST FLOW WILL BRING ANOTHER 5 DEGREES OF AFTERNOON
WARMING AND GOOD MIXING.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30% AFTERNOON CUMULUS).
MAX TEMPERATURE.....43-46 F.
MIN HUMIDITY........21-24%.
WIND (20 FT)........NORTH WINDS 5 MPH UNTIL 1000. THEN LIGHT AND VARIABLE.
                    BY 1200 WEST 5-10 MPH WITH AFTERNOON GUSTS TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR.
MIXING HEIGHT.......LESS THAN 2000 FT AGL UNTIL 1100...THEN RISING TO
                    3,500 IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 5 MPH UNTILL 1000...THEN WEST 12 MPH.

.TONIGHT...

SMOKE DISPERSAL.....POOR BY 1800 HOURS.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MIXING HEIGHT.......1000 FT AGL INCREASING TO 4000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 16 MPH.
SMOKE DISPERSAL.....POOR IN THE MORNING. FAIR TO GOOD IN THE AFTERNOON.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...J  CHONKA
TYPE OF REQUEST...PRESCRIBED
.TAG 20100408.YELLO.01/GJT