FNUS75 KCYS 291331
FWSCYS

SPOT FORECAST FOR SANDSTONE RX...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE CHEYENNE WY
731 AM MDT MON APR 29 2013

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON APRIL 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
CLOUD COVER TO INCREASE THIS MORNING AHEAD OF A COLD FRONT AND THE
NEXT STORM SYSTEM WHICH WILL AFFECT THE AREA OVER THE NEXT FEW DAYS.
CHANCES FOR PRECIPITATION TODAY ARE VERY LOW TODAY BUT CAN NOT
COMPLETELY RULE OUT A STRAY LATE DAY SHOWER.

WIND FORECAST TODAY IS A BIT TRICKY. SIERRA MADRES SHOULD BLOCK SOME
OF THE STRONGEST WINDS...BUT EXPECTING GUSTS UP TO 35 MPH BY LATE
THIS MORNING AND THROUGH THE AFTERNOON.

A COLD FRONT WILL MOVE THROUGH LATER TONIGHT WITH MUCH COOLER
TEMPERATURES TOMORROW. MUCH INCREASED CHANCES FOR PRECIPITATION
TUESDAY AND WEDNESDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........18 TO 23 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH EARLY THIS MORNING...
                    INCREASING TO 15 TO 25 MPH WITH GUSTS UP TO
                    AROUND 35 MPH BY THE AFTERNOON.
CWR.................10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6100 FT AGL INCREASING TO 8300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
SMOKE DISPERSAL.....EXCELLENT (71200 INCREASING TO 204300 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
                    SNOW AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........82 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 25 MPH EARLY EVENING WITH GUSTS
                    UP TO 30 MPH...THEN DECREASING TO 10 TO 15 MPH
                    BY MIDNIGHT.
CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER
                    MIDNIGHT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4500 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 16 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (3400-94300 KNOT-FT).

.TUESDAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
                    AND SNOW IN THE MORNING...THEN SHOWERS LIKELY
                    IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........37 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 15 MPH.
CWR.................60 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 4100 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 12 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (15900-48100 KNOT-FT).

$$
FORECASTER...LIEBL
REQUESTED BY...MICK HOOD
TYPE OF REQUEST...PRESCRIBED
.TAG 20130429.SANDS.02/CYS