FNUS75 KGJT 160424
FWSGJT

SPOT FORECAST FOR RATHOLE...BLM/VERNAL
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1024 PM MDT SAT AUG 15 2009

FORECAST IS BASED ON REQUEST TIME OF 1958 MDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A COLD FRONT PASSED THROUGH THE SITE LATE SATURDAY AFTERNOON. COOLER
AND DRIER AIR MOVED INTO THE AREA BEHIND THE FRONT. MODERATE WEST
WINDS ALOFT ARE EXPECTED SUNDAY. ANOTHER TROUGH WILL MOVE ALONG THE
NORTHERN UTAH BORDER SUNDAY AFTERNOON, CAUSING WESTERLY SURFACE
WINDS TO INCREASE, BUT ONLY CUMULUS BUILDUPS ARE EXPECTED OVER THE
FIRE SITE. MONDAY SHOULD BE COOLER AND DRY WITH LESS WIND. WINDS
ALOFT WILL REMAIN FROM THE WEST. MOSTLY CLEAR SKIES WILL ALLOW
SURFACE INVERSIONS TO FORM OVERNIGHT, AND THESE WILL BURN OFF BY
10 AM FOLLOWED BY UNSTABLE CONDITIONS EACH AFTERNOON.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50%).
MAX TEMPERATURE.....70-75 F.
MIN HUMIDITY........14-19%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 2-5 MPH UNTIL 1000, THEN
                    BECOMING WEST 8-12 MPH WITH GUSTS TO AROUND
                    30 MPH IN THE AFTERNOON.
HAINES INDEX........4 LOW.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20%).
MIN TEMPERATURE.....44-49 F.
MAX HUMIDITY........32-37%.
20-FOOT WINDS.......WEST WINDS 8-12 MPH WITH GUSTS TO AROUND 30 MPH
                    SHIFTING UNTIL ABOUT 2130, THEN BECOMING
                    DOWNSLOPE/DOWNVALLEY 3-5 MPH.
HAINES INDEX........5 MODERATE.
LAL.................1.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....65-70 F.
MIN HUMIDITY........18-23%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-5 MPH UNTIL 10 AM, THEN
                    BECOMING UPSLOPE/UPVALLEY 4-8 MPH, WITH
                    OCCASIONAL GUSTS FROM THE WEST TO 20 MPH AFTER
                    1300.
HAINES INDEX........4 LOW.
LAL.................1.

$$
FORECASTER...CHRIS CUOCO
REQUESTED BY...DAVE INGRAM
TYPE OF REQUEST...WILDFIRE
.TAG 20090815.RATHO.01/GJT