FNUS75 KGJT 212207
FWSGJT

SPOT FORECAST FOR MESA CREEK...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
407 PM MDT TUE SEP 21 2010

FORECAST IS BASED ON REQUEST TIME OF 1528 MDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A TROUGH OF LOW PRESSURE WILL MOVE ONSHORE TONIGHT...AND INTO THE
GREAT BASIN BY MIDDAY WEDNESDAY...THEN ACROSS WESTERN COLORADO
TOMORROW NIGHT. IN ADDITION...COLDER AIR WILL SWEEP ACROSS THE
AREA WEDNESDAY AFTERNOON. THE SOUTHWEST FLOW AHEAD OF THIS
DISTURBANCE WILL CARRY DEEP MOISTURE INTO THE REGION. THEREFORE
LOOK FOR WIDESPREAD SHOWERS AND THUNDERSTORMS TO DEVELOP WEDNESDAY
MORNING AND CONTINUE THROUGH THE EVENING...DIMINISHING AFTER
MIDNIGHT.

.TONIGHT...

SKY/WEATHER.........CLEAR THIS EVENING...THEN INCREASING CLOUDS
                    AFTER MIDNIGHT (50-60% BY 0500).
MIN TEMPERATURE.....45-50 F.
MAX HUMIDITY........59-64%.
20-FOOT WINDS.......SOUTHWEST 5-10 MPH WITH GUSTS TO 25 MPH UNTIL
                    1845...THEN DECREASING. BECOMING DOWNSLOPE/
                    DOWNVALLEY 3-6 MPH AFTER SUNSET.
HAINES INDEX........4 LOW.
LAL.................1.
MIXING HEIGHT.......7000 FT AGL LATE THIS AFTERNOON...DECREASING TO
                    1000 FT AGL AFTER SUNSET.
TRANSPORT WINDS.....SOUTHWEST 20 MPH.

.WEDNESDAY...

SKY/WEATHER.........CLOUDY (80-90%). NUMEROUS SHOWERS AND
                    THUNDERSTORMS .
MAX TEMPERATURE.....62-67 F.
MIN HUMIDITY........38-43%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 0-5 MPH UNTIL 1000...THEN
                    SHIFTING TO THE SOUTH 4-8 MPH. INCREASING TO
                    8-12 MPH IN THE AFTERNOON WITH GUSTS TO 20 MPH.
                    VARIABLE AND GUSTY WINDS NEAR SHOWERS AND
                    THUNDERSTORMS.
HAINES INDEX........2 VERY LOW.
LAL.................5.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 5400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 20 MPH.

$$
FORECASTER...ELLEN HEFFERNAN
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20100921.MESAC.01/GJT