FNUS75 KCYS 282309
FWSCYS

SPOT FORECAST FOR ARAPAHO...FOREST SERVICE
NATIONAL WEATHER SERVICE CHEYENNE WY
509 PM MDT THU JUN 28 2012

FORECAST IS BASED ON REQUEST TIME OF 1651 MDT ON JUNE 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING...

.DISCUSSION...

SOUTHWEST WINDS STILL GUSTY THIS AFTERNOON JUST NORTH OF THE WILDFIRE
AT THE RUSSELLS CAMP WILDFIRE...BUT HAVE SHOWN A DECREASING TENDENCY
THE PAST FEW HOURS. WOULD EXPECT THIS TO BE TRUE FOR THIS FIRE AS WELL.
EXPECT WINDS TO REMAIN AS IS THROUGH SUNSET THEN BASICIALLY GO CALM.
WILL ALLOW THE CURRENT RED FLAG WARNING TO EXPIRE AT 8 PM THIS EVENING.
POOR OVERNIGHT HUMIDITY RECOVERIES WITH MAX HUMIDITIES IN THE MID
TO UPPER 30S. LOOKS LIKE WEST TO SOUTHWEST WINDS WILL BEGIN PICKING
UP AGAIN AROUND NOON TIME WITH SUSTAINED WINDS 10 TO 12 MPH WITH
GUSTS TO 25 MPH. HUMIDITY TOMORROW AFTERNOON AROUND 10 PERCENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........36 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 9 MPH...BECOMING LIGHT AND VARIABLE
                    AFTER 8 PM.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
                    8 PM.
LAL.................2.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5100 FT AGL DECREASING TO 200 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH.
SMOKE DISPERSAL.....EXCELLENT TO POOR (66500-1400 KNOT-FT).

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........10 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 15 MPH. GUSTS UP TO 25 MPH IN
                    THE LATE MORNING AND AFTERNOON.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8000 FT AGL INCREASING TO 15800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 17 MPH.
SMOKE DISPERSAL.....EXCELLENT (79900-285200 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...JEROD DELAY
TYPE OF REQUEST...WILDFIRE
.TAG 20120628.ARAPA.01/CYS