Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 251009
FWSRIW

SPOT FORECAST FOR UPPER CLARKS FORK RX...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
409 AM MDT THU SEP 25 2014

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON SEPTEMBER 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

ONE MORE WARM AND DRY DAY ACROSS THE AREA. CONDITIONS ARE EXPECTED
TO BE DRIER AND SLIGHTLY WINDIER THIS AFTERNOON...COMPARED TO THE
LAST COUPLE OF DAYS. MOSTLY SUNNY SKIES ARE EXPECTED AGAIN TODAY.
CONDITIONS WILL GRADUALLY WORSEN BY SUNRISE FRIDAY...AS AN
APPROACHING STORM SYSTEM BRINGS CLOUDS AND MOISTURE ACROSS WESTERN
WYOMING. SKIES WILL BE PARTLY CLOUDY FRIDAY MORNING...WITH
INCREASING CHANCES FOR SHOWERS AND THUNDERSTORMS OVER THE
SURROUNDING AREAS. AS HIGH CLOUDS FROM AREA THUNDERSTORMS BEGIN TO
INFILTRATE...WINDS ALOFT WILL BEGIN TO DECREASE SOMEWHAT...MAKING
SMOKE DISPERSAL DIFFICULT.

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

FORECASTER...LAVOIE

.TODAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTHWEST 10
                    TO 15 MPH WITH GUSTS TO AROUND 25 MPH BY 1PM.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL INCREASING TO 4700-5700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 20 TO 30 MPH.
SMOKE DISPERSAL.....POOR IN THE MORNING...BECOMING GOOD BY 1PM.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....45-48.
MAX HUMIDITY........75-78 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 8 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4800-5800 FT AGL DECREASING TO 2500-3500 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 15 TO 25 MPH.
SMOKE DISPERSAL.....GOOD IN THE EARLY EVENING...BECOMING POOR BY 9PM.

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........30-33 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTHWEST
                    AROUND 10 MPH EARLY IN THE AFTERNOON...THEN
                    BECOMING UPSLOPE/UPVALLEY 5-10 MPH LATE IN THE
                    AFTERNOON. GUSTS UP TO 15 MPH. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL INCREASING TO 5700-6700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
SMOKE DISPERSAL.....POOR IN THE MORNING...BECOMING GOOD BY 1PM.
                    CONDITIONS COULD RETURN TO POOR BY 4PM...AS
                    THUNDERSTORMS AND HIGH CLOUDS MOVE OVER AREA.

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

$$

FORECASTER...LAVOIE
REQUESTED BY...KLUKAS
REASON FOR REQUEST...PRESCRIBED
.TAG 20140925.UPPER.01/RIW







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