Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 241037
FWSRIW

SPOT FORECAST FOR H2H SAR...NPS YNP
NATIONAL WEATHER SERVICE RIVERTON WY
437 AM MDT FRI JUL 24 2015

FORECAST IS BASED ON INCIDENT TIME OF 2159 MDT ON JULY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED AGAIN THIS
AFTERNOON AND EVENING. RIDGE TOP WINDS WILL BE BREEZY FROM THE
WEST TO SOUTHWEST...WHILE VALLEY/RIVER BOTTOMS WILL BE MORE
TERRAIN DRIVEN. WINDS WILL ALSO BECOME MORE VARIABLE AND DOMINATED
BY OUTFLOW THUNDERSTORM WINDS BY MID TO LATE AFTERNOON. GUSTS FROM
THUNDERSTORM WINDS COULD REACH 45 MPH. OTHERWISE THE MAIN HAZARD
WILL BE FROM LIGHTNING.

A VERY STRONG COLD FRONT WILL PUSH ACROSS YELLOWSTONE MONDAY...BRINGING
VERY WINDY... MUCH COOLER CONDITIONS AND A CHANCE OF SHOWERS AND
THUNDERSTORMS.

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

FORECASTER...MURRELL

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY THIS MORNING...BECOMING MOSTLY
                    CLOUDY WITH WIDELY SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........30 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5 TO 10 MPH. GUSTS TO 15 MPH.
                    GUSTIER AND ERRATIC WINDS TO 45 MPH WITH
                    ANY AFTERNOON THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH...INCREASING TO 10 TO
                    15 MPH. GUSTS TO 30 MPH IN THE AFTERNOON.
                    HIGHER NEAR ANY THUNDERSTORMS.
LAL.................1 UNTIL NOON...THEN 3.
CHC OF WETTING RAIN.5 PERCENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH WIDELY SCATTERED SHOWERS
                    AND THUNDERSTORMS THROUGH 9 PM...THEN PARTLY
                    CLOUDY.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........85-90 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE SOUTH
                    AFTER MIDNIGHT.
LAL.................2 UNTIL 9 PM...THEN 1.
CHC OF WETTING RAIN.5 PERCENT.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
                    ISOLATED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH BECOMING SOUTH TO
                    SOUTHWEST AROUND 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON.
LAL.................1 UNTIL NOON...THEN 2.
CHC OF WETTING RAIN.NEAR ZERO PERCENT.

.FORECAST DAYS 3 THROUGH 5...

.SATURDAY NIGHT...
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING.
LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...
WARM. PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS IN
THE LOWER 80S. SOUTH TO SOUTHWEST 10 TO 15 MPH.

.MONDAY...
MUCH COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. LOWS IN THE MID 40S.
HIGHS IN THE MID 60S. SOUTHWEST 15 TO 25 MPH...BECOMING WEST 20
TO 30 MPH.

.TUESDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS 55 TO 60. WINDS GENERALLY
LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...IC- BRIAN CHAN
TYPE OF REQUEST...SAR
.TAG 20150723.H2HSA.01/RIW


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