FNUS75 KCYS 281533
FWSCYS

SPOT FORECAST FOR SANDSTONE RX...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE CHEYENNE WY
933 AM MDT SUN APR 28 2013

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

.DISCUSSION...A FEW SHOWERS AND THUNDERSTORMS EXPECTED AROUND THE
AREA THIS AFTERNOON AS A WEAK UPPER LEVEL DISTURBANCE MOVES ACROSS
SOUTHEAST WYOMING. SKIES WILL CLEAR OFF BY LATE THIS EVENING AS
THE DISTURBANCE MOVES EAST. LOTS OF SUNSHINE TO START OFF MONDAY
BUT EXPECT INCREASING CLOUDS AS ANOTHER WEATHER SYSTEM APPROACHES.
RAIN AND SNOW SHOWERS EXPECTED BY TUESDAY AFTERNOON.

WINDS WILL BE ON THE HIGHER SIDE MONDAY. THE BURN SITE SHOULD BE
SOMEWHAT SHELTERED FROM THE STRONGEST WINDS AS THE SIERRA MADRE
RANGE SHOULD DISRUPT THE FLOW ALOFT. STILL SOMEWHAT WINDY THOUGH
WITH GUSTS TO 35 MPH LIKELY BY MONDAY AFTERNOON. WINDS WILL DROP
OFF BY MONDAY EVENING.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........SOUTHWEST 10 TO 15 MPH SHIFTING TO THE WEST 15
                    TO 20 MPH WITH HIGHER GUSTS IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6800 FT AGL INCREASING TO 9800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....EXCELLENT AT 190000 KNOT-FT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    CLEAR (5-10 PERCENT). CHANCE OF RAIN
                    SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
                    THE EARLY EVENING.
MIN TEMPERATURE.....AROUND 36.
MAX HUMIDITY........72 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH AND GUSTY DECREASING TO
                    AROUND 6 MPH AFTER MIDNIGHT.
CWR.................30 PERCENT DECREASING TO 10 PERCENT AFTER
                    MIDNIGHT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5300 FT AGL DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 14 MPH.
SMOKE DISPERSAL.....BECOMING POOR AT 3600 KNOT-FT.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 19 MPH WITH HIGHER GUSTS
                    INCREASING TO 20 TO 25 MPH WITH GUSTS AROUND
                    35 MPH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4300 FT AGL INCREASING TO 8300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.
SMOKE DISPERSAL.....GOOD IN THE MORNING BECOMING EXCELLENT IN THE
                    AFTERNOON (41000-195000 KNOT-FT).

$$
FORECASTER...LIEBL
REQUESTED BY...MICK HOOD
TYPE OF REQUEST...PRESCRIBED
.TAG 20130429.SANDS.01/CYS