Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 231043
FWSRIW

SPOT FORECAST FOR WEST SLOPE BIGHORNS PILE RX...BUREAU OF LAND MANAGEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
343 AM MST FRI JAN 23 2015

FORECAST IS BASED ON IGNITION TIME OF 1200 MST ON JANUARY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...EXTENSIVE CLOUDINESS WITH SOME FLURRIES WILL MOVE
ACROSS THE AREA THIS MORNING INTO EARLY AFTERNOON. CLEARING WILL
OCCUR LATE IN THE AFTERNOON. WINDS WILL REMAIN LIGHT THROUGH THE
MIXING LAYER RESULTING IN POOR SMOKE DISPERSAL. NORTHWEST FLOW
ALOFT WILL STRENGTHEN ON SATURDAY RESULTING IN BETTER
MIXING AND GOOD SMOKE DISPERSAL IN THE AFTERNOON. TEMPERATURES WILL TREND
AROUND 5 TO 8 DEGREES WARMER ON SATURDAY. THIS RELATIVELY STRONG
NORTHWEST FLOW AND AT LEAST FAIR MIXING WILL REMAIN OVER THE AREA
SUNDAY. A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE AREA MONDAY
AND TUESDAY WITH MUCH LIGHTER WIND ALOFT...STEEPENING
INVERSIONS...POOR SMOKE DISPERSAL.


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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........CLOUDY (85-100 PERCENT) THROUGH 2-3 PM...THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). OCCASIONAL FLURRIES IN
                    THE MORNING.
MAX TEMPERATURE.....34-37.
MIN HUMIDITY........40-44 PERCENT.
20 FOOT WINDS.......EAST SOUTHEAST 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000-2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (10000-20000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT).
MIN TEMPERATURE.....22-25.
MAX HUMIDITY........76-79 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (2200-3000 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
                    SNOW SHOWERS IN THE MORNING...THEN SLIGHT
                    CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....41-44.
MIN HUMIDITY........44-48 PERCENT.
20 FOOT WINDS.......NORTH 5-9 MPH IN THE MORNING...BECOMING NORTHWEST AROUND
                    10 MPH IN THE AFTERNOON WITH GUSTS 15 TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000-4500 AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 20-25 MPH.
SMOKE DISPERSAL.....GOOD IN THE AFTERNOON (80000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW
SHOWERS. LOWS IN THE UPPER 20S. WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY. OCCASIONAL FLURRIES IN THE MORNING. LOWS
IN THE UPPER 20S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS
THAN 10 MPH.

.MONDAY...MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER
50S. WINDS GENERALLY LESS THAN 10 MPH.

.TUESDAY...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE MID 50S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...MICHAEL MATTMILLER
REASON FOR REQUEST...PRESCRIBED
.TAG 20150123.WESTS.01/RIW







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