FNUS75 KGJT 051658
FWSGJT

SPOT FORECAST FOR POTHOLES...USFA
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
958 AM MST MON NOV 5 2012

FORECAST IS BASED ON IGNITION TIME OF 1300 MST ON NOVEMBER 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
UPPER RIDGING WILL BE BUILDING ACROSS NORTHEAST UTAH ON TUESDAY IN
RESPONSE TO THE NEXT LARGE PACIFIC STORM MOVING TOWARD THE NORTHWEST
STATES. THIS WILL LEAD TO WARMING MID LEVEL TEMPERATURES ABOVE THE
MOUNTAIN TOPS AND LIGHTENING WESTERLY WINDS ALOFT. AT THE MOMENT
MIXING WINDS LOOK TO REMAIN AT OR BELOW 12 MPH WITH ONLY A FEW
THOUSAND FEET OF MIXING...AND CLEARING INDEXES REMAINING BELOW 500.
THE UPPER RIDGE MOVES INTO WESTERN COLORADO ON WEDNESDAY WITH A
SLIGHT COOLING OF THE TEMPERATURES ALOFT. THIS WILL INCREASE
INSTABILITY SLIGHTLY AS THE TEMPERATURES ALOFT COOL A DEGREE OR
TWO. WINDS HOWEVER REMAIN LIGHT WITH STRONGER WESTERLIES JUST
NORTH OF THE WYOMING BORDER. FORECAST CONFIDENCE IS LOW BUT
CLEARING INDEX NUMBERS MAY REMAIN JUST BELOW 500 ON WEDNESDAY AS
WELL. STRONGER SOUTHWEST TRANSPORT WINDS MOVE IN FOR THURSDAY AS
THE PACIFIC SYSTEM MOVES ONSHORE AND THIS SHOULD HELP PUSH
CLEARING INDEX VALUES UPWARD.

.WEDNESDAY...
MAC TEMPERATURE.....AROUND 55 F.
MIN HUMIDITY........26-31%.
20-FOOT WINDS.......DOWNVALLEY AT 5 TO 8 MPH THROUGH 1000 THEN
                    BECOMING UPSLOPE AT 3 TO 5 MPH UNTIL 1200.
                    UPVALLEY WINDS OF 5 TO 9 MPH MOST LIKELY IN
                    LOWER ELEVATIONS...BUT RIDGETOP WINDS FROM THE
                    SOUTHWEST AT 5 TO 10 MPH.
CLEARING INDEX......50 THROUGH MID MORNING INCREASING TO 350 IN
                    THE AFTERNOON.

$$
FORECASTER...DENNIS PHILLIPS
REQUESTED BY...CHRIS DEETS
TYPE OF REQUEST...PRESCRIBED
.TAG 20121106.POTHO.01/GJT