Suppression Forecast
Issued by NWS Riverton, WY

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494
FNUS75 KRIW 300916
FWSRIW

SPOT FORECAST FOR WHIT FIRE...WBD
NATIONAL WEATHER SERVICE RIVERTON WY
316 AM MDT FRI SEP 30 2016

FORECAST IS BASED ON REQUEST TIME OF 1721 MDT ON SEPTEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A COUPLE WEAK DISTURBANCES IN THE SOUTHWEST FLOW WILL PRODUCE ISOLATED
SHOWERS AND THUNDERSTORMS AROUND THE AREA TODAY WITH A LITTLE BETTER
CHANCE ON SATURDAY AND SUNDAY. GUSTY/WINDY SOUTHWEST WIND WILL PEAK
THIS MORNING WITH A SLIGHT DECREASE BY AFTERNOON BUT STILL BREEZY AT TIMES.
A SIGNIFICANT STORM WILL LIKELY IMPACT THE AREA MONDAY INTO TUESDAY WITH
MUCH COLDER TEMPERATURES AND PERIODS OF RAIN. SIGNIFICANT RAIN AND MOUNTAIN
SNOW MAY IMPACT THE AREA FROM THIS STORM SYSTEM.

...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 (45-55 PERCENT) WITH ISOLATED
                    AFTERNOON SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....65-69.
MIN HUMIDITY........34-40 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 13 MPH WITH GUSTS TO AROUND 25
                    MPH. GUSTY AND ERRATIC NEAR ANY SHOWERS/STORMS.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.,.GUSTS TO 35 MPH THIS MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 7900-8400 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....WEST 18 TO 21 MPH.
SMOKE DISPERSAL.....POOR (30000 KNOT-FT) INCREASING TO EXCELLENT
                    (160000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....45-48.
MAX HUMIDITY........67-70 PERCENT.
20 FOOT WINDS.......WEST WINDS 8 TO 10 MPH EARLY IN THE EVENING
                    BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP
                    TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE EVENING.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4500 FT AGL IN THE EVENING THEN 500 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 18 MPH.
SMOKE DISPERSAL.....GOOD (65900 KNOT-FT) DECREASING TO POOR (7500
                    KNOT-FT) AFTER MIDNIGHT.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SCATTERED RAIN
                    SHOWERS AND ISOLATED THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....62-68.
MIN HUMIDITY........35-43 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 10
                    TO 12 MPH WITH GUSTS TO AROUND 25 MPH IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......500 FT AGL THEN 10000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 16 TO 22 MPH.
SMOKE DISPERSAL.....POOR (9000 KNOT-FT) INCREASING TO EXCELLENT
                    (185000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING...THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 40S. WEST WINDS AROUND 10 MPH.
.SUNDAY...
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S. WINDS GENERALLY
LESS THAN 10 MPH.
.MONDAY...
MUCH COOLER WITH PERIODS OF RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS
THAN 10 MPH.
.TUESDAY...
CLOUDY WITH SCATTERED SHOWERS...POSSIBLY MIXED WITH SNOW EARLY.
LOWS IN THE MID 30S. HIGHS IN THE LOWER 40S. WINDS GENERALLY
LESS THAN 10 MPH.

$$
FORECASTER...SKRBAC
REQUESTED BY...SCHAULAND
TYPE OF REQUEST...WILDFIRE
.TAG 20160929.WHITF.01/RIW



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