FNUS75 KRIW 281047
FWSRIW

SPOT FORECAST FOR WEST SLOPE BIGHORN PILE BURN...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
347 AM MST WED NOV 28 2012

FORECAST IS BASED ON IGNITION TIME OF 1000 MST ON NOVEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A FLAT RIDGE OF HIGH PRESSURE WILL HOLD OVER THE AREA
TODAY WITH GENERALLY DIURNALLY DRIVEN WINDS AND VARYING AMOUNTS OF MAINLY
HIGH CLOUDS. A WEAK COLD FRONT WILL PASS OVERHEAD THURSDAY MORNING WITH
LITTLE EFFECT OTHER THAN A PERIOD OF THICKER CLOUDS AND AN INCREASE IN
MOUNTAIN TOP WINDS. WINDS WILL LIKELY REMAIN DIURNALLY DRIVEN ON THURSDAY
WITH THE MAIN EFFECT OF THE FRONT POTENTIALLY BEING SOME GUSTY...SHIFTING
MOUNTAIN TOP WINDS.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY (60-80 PERCENT).
MAX TEMPERATURE.....42-45.
MIN HUMIDITY........23-26 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH.
RIDGE TOP WINDS.....NORTHWEST 15-20 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000-2500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR (20000-25000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY (60-80 PERCENT).
MIN TEMPERATURE.....AROUND 30.
MAX HUMIDITY........56-59 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST 6-12 MPH.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500-1000 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
SMOKE DISPERSAL.....POOR (10000 KNOT-FT OR LESS).

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MAX TEMPERATURE.....41-44.
MIN HUMIDITY........35-38 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 20-25 MPH.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500-2000 FT AGL.
TRANSPORT WINDS.....NORTH TO NORTHWEST 6-12 MPH.
SMOKE DISPERSAL.....POOR (15000-24000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS AROUND 10 MPH.
.SATURDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS AROUND 13 MPH.
.SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER
20S. HIGHS IN THE MID 40S. SOUTHWEST WINDS AROUND 17 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...MICHAEL MATTMILLER
REASON FOR REQUEST...PRESCRIBED
.TAG 20121128.WESTS.01/RIW