FNUS75 KGJT 011601
FWSGJT

SPOT FORECAST FOR FREEZEWALL PILES...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
901 AM MST TUE DEC 1 2009

FORECAST IS BASED ON IGNITION TIME OF 1030 MST ON DECEMBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A COLD FRONT IS IN NORTHERN WYOMING THIS MORNING
THAT WILL SWEEP OVER THE BURN SITE AROUND MIDNIGHT TONIGHT.
INCREASING GRADIENT WINDS AT MOUNTAIN TOP LEVEL WILL NOT BE ABLE
TO MIX DOWN TO THE SURFACE THIS AFTERNOON KEEPING SMOKE DISPERSAL
IN THE POOR CATEGORY. MOISTURE IS LIMITED BUT SOME LIGHT SNOWFALL
IS EXPECTED WITH THE FRONT. BETTER MIXING IS LIKELY ON WEDNESDAY
AS THE COLD AIRMASS POURS OVER THE REGION FROM THE NORTH.

.TODAY...

MAX TEMPERATURE.....41-44 F.
20-FOOT WINDS.......SOUTH 3-5 MPH SHIFTING TO THE NORTHWEST IN
                    THE AFTERNOON.
SMOKE DISPERSAL.....POOR (5000-34800 KNOT-FT).
MIXING HEIGHT.......1000 FT AGL RISING TO 3000 FT AGL THIS AFTERNOON.
TRANSPORT WINDS.....WEST 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (50-60%) THEN BECOMING MOSTLY
                    CLOUDY (70-80%). SCATTERED SHOWERS AFTER
                    MIDNIGHT.
20-FOOT WINDS.......EAST WINDS 5 MPH SHIFTING TO NORTH 10-15 MPH
                    AROUND MIDNIGHT.
SMOKE DISPERSAL.....POOR BECOMING GOOD TO EXCELLENT AFTER MIDNIGHT.
MIXING HEIGHT.......LESS THAN 1000 FT AGL UNTIL MIDNIGHT...THEN 5000
                    FT AGL...LOWERING AGAIN TO AROUND 2000 FT AT
                    SUNRISE.
TRANSPORT WINDS.....EAST 5 MPH UNTIL MIDNIGHT...THEN NORTH 15 MPH.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...GARNER HARRIS
TYPE OF REQUEST...PRESCRIBED
.TAG 20091201.FREEZ.01/GJT