Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 221344
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
744 AM MDT WED APR 22 2015

FORECAST IS BASED ON IGNITION TIME OF 1130 MDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
CLOUDS WILL BUILD AROUND THE MOUNTAINS TODAY LEADING TO ISOLATED SHOWERS
AROUND THE AREA AFTER 1500L. CONDITIONS LOOK FAIRLY SIMILAR FOR THURSDAY
WITH POSSIBLY A FEW MORE SHOWERS AROUND THE AREA. A VERY SMALL CHANCE OF
A THUNDERSTORM IS STILL POSSIBLE. WINDS WILL LIKELY BE DIURNALLY DRIVEN
UNLESS A SHOWER MOVES NEARBY TODAY. GUSTY SOUTH WINDS MAY DEVELOP TONIGHT
AND THEN TURN NORTHEAST ON THURSDAY.



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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS AFTER 1500L.
MAX TEMPERATURE.....61-64.
MIN HUMIDITY........25-30 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 6-9 MPH GUSTS TO 15 MPH. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS
                    LATE IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE NORTH LATE
                    IN THE AFTERNOON.
LAL.................1 UNTIL 1500...THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000-5000 FT AGL INCREASING TO 8000-9000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 8 TO 11 MPH SHIFTING TO THE NORTH LATE IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....FAIR EARLY THEN GOOD (50000-85000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS UNTIL
                    2000L.
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........56-59 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH BECOMING SOUTH 9
                    TO 11 MPH WITH GUSTS TO 20 MPH AFTER MIDNIGHT.
RIDGE TOP WINDS.....SOUTHEAST 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.......5200-6200 FT AGL DECREASING TO 2900-3900 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHEAST 13 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (45800-59500 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS AFTER 1400L.
MAX TEMPERATURE.....60-63.
MIN HUMIDITY........33-36 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHEAST 8-12 MPH
                    WITH GUSTS TO 18 MPH IN THE AFTERNOON. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE NORTH BY LATE MORNING.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3000-4000 FT AGL INCREASING TO 5600-6600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 0900L THEN NORTHEAST
                    AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (42000-80000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS IN THE MID 30S. HIGHS IN THE LOWER 40S. WINDS GENERALLY LESS
THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...MICHAEL WENGERT
REASON FOR REQUEST...PRESCRIBED
.TAG 20150422.WESTS.01/RIW






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