FNUS75 KPUB 010210
FWSPUB

SPOT FORECAST FOR JOHNSON GULCH...USFS
NATIONAL WEATHER SERVICE PUEBLO CO
810 PM MDT MON AUG 31 2009

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL BUILD OVER THE SITE OVER THE NEXT
24 HOURS...BRINGING GENERALLY WARMER AND DRIER CONDITIONS.  HOWEVER...
THERE WILL STILL BE ENOUGH MOISTURE AROUND FOR SOME ISOLATED AFTERNOON
THUNDERSTORM ACTIVITY ON TUESDAY.  THE WIND FORECAST IS A BIT OF A
CHALLENGE.  THE FREE AIR WINDS AT SITE ELEVATION WILL BE WESTERLY
AT ROUGHLY 10-15 MPH.  PEAK WINDS A LITTLE ABOVE MOUNTAIN TOP LEVEL WILL
BE IN THE 20-25 MPH RANGE.  SO...BELIEVE THAT RIDGE TOPS AND OTHER EXPOSED
HIGHER TERRAIN WILL PROBABLY SEE WESTERLY WINDS IN THE 15-25 MPH RANGE
ONCE COMPLETE MIX OUT OCCURS IN THE AFTERNOON.  HOWEVER...SURFACE PRESSURE
GRADIENTS WILL BE WEAK SO VALLEYS AND LOWER TERRAIN AREAS WILL PROBABLY
JUST SEE DIURNALLY DRIVEN CIRCULATIONS.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY(50 PERCENT) UNTIL 2400...THEN
                    PARTLY CLOUDY(25 PERCENT). ISOLATED
                    THUNDERSTORMS POSSIBLE UNTIL 2400.
MIN TEMPERATURE.....40-45F.
MAX HUMIDITY........90-100 PERCENT.
20 FOOT WIND........DOWNSLOPE/DOWNVALLEY 3-6 MPH.
MIXING HEIGHT.......LESS THAN 500 FT AGL.
TRANSPORT WIND......WEST AROUND 12 MPH.
SMOKE DISPERSAL.....POOR.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
LAL.................2 UNTIL 2400...THEN 1.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY(40 PERCENT). ISOLATED
                    THUNDERSTORMS AFTER 1200.
MAX TEMPERATURE.....74-79F.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WIND........AFTER 0900 BECOMING WEST TO NORTHWEST 12-25 MPH RIDGES
                    AND EXPOSED HIGHER TERRAIN...OTHERWISE UPSLOPE/UPVALLEY
                    5-10 MPH.
MIXING HEIGHT.......500 FT AGL UNTIL 0900...THEN RISING TO 13000 FT AGL.
TRANSPORT WIND......WEST AROUND 13 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900...THEN EXCELLENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
LAL.................1 UNTIL 1200...THEN 3.

$$
FORECASTER...WALROD
REQUESTED BY...DENNIS PAGE
TYPE OF REQUEST...WILDFIRE
.TAG 20090831.JOHNS.01/PUB