FNUS75 KCYS 210337
FWSCYS

SPOT FORECAST FOR SAM DRAW 1...STATE OF WYOMING
NATIONAL WEATHER SERVICE CHEYENNE WY
937 PM MDT TUE AUG 20 2013

FORECAST IS BASED ON REQUEST TIME OF 2119 MDT ON AUGUST 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

INCREASING MOISTURE FROM THE MONSOON WILL GIVE MOSTLY CLOUDY SKIES
TO THE BURN AREA TONIGHT THROUGH WEDNESDAY. VERY ISOLATED SHOWERS CAN
BE EXPECTED OVERNIGHT...BUT LITTLE IN THE WAY OF WETTING RAINS. THESE
SHOWERS COULD PRODUCE GUSTY AND ERRATIC WINDS OVER THE BURN WITH GUSTS
TO 40 MPH POSSIBLE. NORTHWEST WINDS THIS EVENING OF 5 TO 7 MPH WILL
EVENTUALLY TURN MORE NORTHEASTERLY TOWARDS EARLY MORNING. INCREASING
CHANCES FOR WETTING RAINS FROM SHOWERS AND THUNDERSTORMS AFTER NOON
TIME WEDNESDAY.

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). ISOLATED
                    SHOWERS THROUGH THE NIGHT.
MIN TEMPERATURE.....AROUND 65.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH IN THE LATE EVENING
                    AND EARLY MORNING BECOMING NORTHEAST AT 5 MPH
                    AFTER 4 AM.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6300 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 8 MPH.
SMOKE DISPERSAL.....GOOD TO (48900-1600 KNOT-FT).

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (55-65 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE LATE MORNING. SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........NORTHEAST WINDS AT 5 MPH...BECOMING EAST 5 TO
                    6 MPH IN THE LATE MORNING AND AFTERNOON.
CWR.................10 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
LAL.................2.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL INCREASING TO 8300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 9 MPH.
SMOKE DISPERSAL.....FAIR TO EXCELLENT (22700-72600 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...MARK STREETS
TYPE OF REQUEST...WILDFIRE
.TAG 20130820.SAMDR.01/CYS