FNUS75 KGJT 080451
FWSGJT

SPOT FORECAST FOR YOUTH CAMP 7   8 PILES...SUA
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
951 PM MST WED DEC 7 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON DECEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A WEAK WAVE WILL BRUSH NORTHERN COLORADO ON
THURSDAY. THIS WILL RESULT IN SOME COOLING ALOFT WHICH WILL SLIGHTLY
WEAKEN THE STRONG VALLEY INVERSIONS THAT HAVE BEEN IN PLACE OVER
THE REGION. WHILE SURFACE TEMPERATURES MAY SEE A COUPLE DEGREES OF
WARMING...THIS SYSTEM WILL BE JUST TOO FAR NORTH FOR MUCH OF AN
INCREASE IN MIXING IN THE INVERTED SOUTHWEST COLORADO VALLEYS.
THEREFORE SMOKE DISPERSAL IS NOT EXPECTED TO CLIMB OUT OF THE POOR
CATEGORY AT THE BURN SITE. NEARBY SLOPES SHOULD SEE BETTER MIXING.

**TEMPERATURES AT THE DEVIL MOUNTAIN RAWS WERE SIGNIFICANTLY
 HIGHER ON WEDNESDAY THAN TEMPERATURES RECORDED AT KDRO AND KPSO.
 I ATTRIBUTE THIS DIFFERENCE TO THE HIGHER ELEVATION AT THE DEVIL
 MOUNTAIN RAWS...AND THE PROBABILITY THAT IT IS LOCATED ABOVE THE
 VALLEY INVERSION. THE LOCATION OF THE BURN SITE PUTS IT NEAR THE
 VALLEY FLOOR AT A SIMILAR ELEVATION TO KDRO.


.THURSDAY...

SKY/WEATHER.........MOSTLY PARTLY CLOUDY (30-40%).
MAX TEMPERATURE.....33-37 F.
MIN HUMIDITY........40-45%.
20-FOOT WINDS.......LIGHT DOWNVALLEY (0-4 MPH) UNTIL NOON...THEN
                    BECOMING UPVALLEY 0-5 MPH.
SMOKE DISPERSAL.....POOR (4500 KNOT-FT).

.THURSDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR (20-30%).
20-FOOT WINDS.......NORTHEAST WINDS 5 MPH.

$$
FORECASTER...ELLEN HEFFERNAN
REQUESTED BY...FUELS SPECIALIST
TYPE OF REQUEST...PRESCRIBED
.TAG 20111208.YOUTH.01/GJT