FNUS75 KRIW 271045
FWSRIW

SPOT FORECAST FOR BRADLEY MOUNTAIN...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
445 AM MDT SUN SEP 27 2009

FORECAST IS BASED ON IGNITION TIME OF 2325 MDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

UNSEASONABLY WARM TEMPERATURES AND LOW RELATIVE HUMIDITY WILL
CONTINUE FOR THE NEXT COUPLE OF DAYS. NORTHWEST WINDS ARE EXPECTED AT
RIDGE TOP...WITH UPVALLEY WESTERLY WINDS IN THE CANYONS. SOME
SOUTHERLY WINDS ARE EXPECTED ON MONDAY.

A MAJOR STORM SYSTEM IS EXPECTED TO AFFECT THE AREA TUESDAY
THROUGH WEDNESDAY NIGHT. STRONG SOUTHWEST WINDS AND WARM
TEMPERATURES ARE EXPECTED ON TUESDAY AHEAD OF THIS SYSTEM...WITH
A DECENT CHANCE FOR WETTING PRECIPITATION AND COOLER TEMPERATURES
TUESDAY NIGHT AND WEDNESDAY.

...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 75 VALLEY FLOOR TO AROUND 60 RIDGE TOP.
MIN HUMIDITY........10-15 PERCENT ALL ELEVATIONS.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH BECOMING WEST NORTHWEST
                    5-10 MPH AROUND 1400. GUSTS AROUND 15 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 5600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 TO 20 MPH.
SMOKE DISPERSAL.....POOR (14700 KNOT-FT) INCREASING TO GOOD (85100
                    KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY (EASTERLY) 4-8 MPH. GUSTS
                    UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH BECOMING LIGHT BY 2100
                    THEN BECOMING SOUTHEAST AROUND 10 MPH AFTER 0300.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3600 FT AGL DECREASING TO 1100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH BECOMING LIGHT BY 2100
                    THEN BECOMING SOUTHEAST AROUND 10 MPH AFTER 0300.
SMOKE DISPERSAL.....POOR TO FAIR (16100-42600 KNOT-FT).

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 80 VALLEY TO AROUND 65 RIDGE TOP.
MIN HUMIDITY........13-16 PERCENT ALL ELEVATIONS.
20 FOOT WINDS.......EAST SOUTHEAST 5-10 MPH...BECOMING SOUTHWEST
                    AROUND 10 MPH AROUND 1400. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH SHIFTING TO THE
                    SOUTHWEST LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 6600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 17 TO 18 MPH SHIFTING TO THE
                    SOUTHWEST LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (18100 KNOT-FT) INCREASING TO VERY GOOD
                    (107900 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS
AROUND 10 MPH.
.TUESDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
SOUTHWEST WINDS 10-20 MPH.
.WEDNESDAY...MUCH COLDER. MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY
AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 30S. WEST WINDS AROUND 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND
30. HIGHS IN THE UPPER 40S. NORTHWEST WINDS AROUND 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...DWAYNE GIBBONS
REASON FOR REQUEST...PRESCRIBED
.TAG 20090926.BRADL.02/RIW