Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 221145
FWSRIW

SPOT FORECAST FOR SHOSHONE LAKE...BHF
NATIONAL WEATHER SERVICE RIVERTON WY
545 AM MDT FRI JUL 22 2016

FORECAST IS BASED ON FORECAST TIME OF 0600 MDT ON JULY 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

.DISCUSSION...

GUSTY WEST TO SOUTHWEST WINDS EARLY. AN UPPER LEVEL DISTURBANCE AND
ASSOCIATED SURFACE FRONT WILL MOVE ACROSS THE AREA TODAY/TONIGHT.
THIS WILL PROVIDE SOME IMPETUS TO INITIATE ISOLATED HIGH BASED SHOWERS
AND THUNDERSTORMS THIS AFTERNOON WITH BRIEF OR LITTLE RAINFALL BUT
VERY GUSTY OUTFLOW WINDS OF 35 TO 55 MPH...EVEN HIGHER FOR SHORT
PERIODS. SOME OF THESE OUTFLOW WINDS MAY BE FELT WELL AWAY FROM OR
AHEAD OF THE SHOWER OR STORM. THEN THIS EVENING...SHOWERS/STORMS
AND THEIR ASSOCIATED WINDS WILL MOVE OFF BY MID EVENING LEAVING LIGHTER
WEST TO SOUTHWEST WINDS IN THE WAKE...WITH CLEARING SKIES AND COOL
OVERNIGHT TEMPERATURES. SATURDAY SHOULD BE SLIGHTLY COOLER WITH LESS
WIND AND SUNNY SKIES WITH NO CHANCE FOR RAIN.

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

FORECASTER...BRAUN

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (15-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........12-17 PERCENT.
20 FOOT WINDS.......WEST TO SOUTHWEST WINDS 12 TO 17 MPH. GUSTS UP
                    TO 25 MPH DECREASING TO 15 MPH LATE IN THE
                    MORNING...THEN INCREASING BACK TO AROUND 25 MPH
                    IN THE AFTERNOON. ERRATIC OUTFLOW WINDS 35 TO
                    55 MPH EXPECTED NEAR STRONGER SHOWERS OR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 25 MPH.
LAL.................1 UNTIL 1200...THEN 3.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-55 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........43-48 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH
                    DECREASING TO 20 MPH IN THE LATE EVENING AND
                    OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE EVENING.
RIDGE TOP WINDS.....WEST AROUND 25 MPH DECREASING TO 15 TO 20 MPH
                    IN THE LATE EVENING AND OVERNIGHT.
LAL.................3 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........6 DECREASING TO 5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY (0-15 PERCENT).
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........13-18 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 8 TO 11 MPH EARLY IN THE
                    MORNING BECOMING UPSLOPE/UPVALLEY 5-9
                    MPH...THEN BECOMING WEST 8 TO 13 MPH IN THE
                    AFTERNOON. A FEW GUSTS 15 TO 20 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.
.SUNDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.MONDAY...
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...BRAUN
REQUESTED BY...KEATING  IC
TYPE OF REQUEST...WILDFIRE
.TAG 20160721.SHOSH.01/RIW



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