FNUS75 KGJT 210107
FWSGJT

SPOT FORECAST FOR DERBY...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
707 PM MDT THU JUN 20 2013

FORECAST IS BASED ON REQUEST TIME OF 1837 MDT ON JUNE 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR
GUSTY WINDS...LOW RELATIVE HUMIDITY...HIGH HAINES INDEX AND
DRY FUELS BELOW 9000 FEET...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 9 PM MDT FRIDAY FOR
GUSTY WINDS...LOW RELATIVE HUMIDITY...HIGH HAINES INDEX AND
DRY FUELS BELOW 9000 FEET...

.DISCUSSION...
STRONG GRADIENT SOUTHWEST FLOW WILL STAY IN PLACE LATE TODAY
WILL NOT CHANGE FOR FRIDAY. SOME GUSTS NEAR 30 MPH WERE STILL BEING
REPORTED AT THE HANGMAN RAWS SITE THIS EVENING LEAVING SOME CHANCE
OF SOME GUSTY WINDS NEAR THE FIRE SITE THROUGH 2100. SUNSET SHOULD
ALLOW THE TERRAIN BASED WINDS TO SET UP...POSSIBLY A WEST TO
NORTHWEST DIRECTION AT AT 4 TO 8 MPH. MIXING BY MID TO LATE MORNING
ON FRIDAY WILL ONCE AGAIN ALLOW THE STRONGER SOUTHWEST WINDS TO MIX
DOWN AND BECOME GUSTY. THIS WILL BRING CRITICAL FIRE WEATHER
CONDITIONS TO THE FIRE SITE AS HUMIDITIES WILL FALL TO THE
LOWER TEENS AND SINGLE DIGITS BY MID AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (5-15%).
MIN TEMPERATURE.....FALLING TO NEAR 60 BY MIDNIGHT WITH A MIN
                    NEAR 45 F BY SUNRISE.
MAX HUMIDITY........HUMIDITY 10-15 PERCENT THROUGH 2200 THEN
                    SLOWLY RECOVERING TO NEAR 37% BY SUNRISE.
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH WITH GUSTS UP TO 20
                    MPH THROUGH SUNSET...THEN WINDS DECREASING
                    TO 4 TO 8 MPH AND DOWNSLOPE/DOWNVALLEY
                    THROUGH SUNRISE.
HAINES INDEX........6 HIGH THROUGH 2200 THEN 5.
LAL.................1.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%).
MAX TEMPERATURE.....NEAR 77 F BY 1400.
MIN HUMIDITY........8 TO 12% IN THE AFTERNOON.
20-FOOT WINDS.......DOWNVALLEY WINDS 5 TO 8 MPH THROUGH 1000 THEN
                    BECOMING SOUTHWEST WINDS 12 TO 17 MPH BY 1200
                    WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
HAINES INDEX........5 THROUGH 1000 THEN 6 HIGH.
LAL.................1.

$$
FORECASTER...DENNIS PHILLIPS
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20130620.DERBY.02/GJT