Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 250119
FWSRIW

SPOT FORECAST FOR BERRY...GRAND TETON NATL. PARK
NATIONAL WEATHER SERVICE RIVERTON WY
719 PM MDT WED AUG 24 2016

FORECAST IS BASED ON REQUEST TIME OF 1906 MDT ON AUGUST 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SCATTERED SHOWERS TONIGHT WITH ISOLATED EVENING
THUNDERSTORMS. SCATTERED SHOWERS WITH ISOLATED AFTERNOON AND
EVENING THUNDERSTORMS ON THURSDAY INTO THURSDAY NIGHT. FRIDAY
LOOKS DRIER WITH ONLY ISOLATED SHOWERS WHICH MAY IMPACT
THE FIRE AREA LATE IN THE AFTERNOON.

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

FORECASTER...AR

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
                    ISOLATED EVENING THUNDERSTORMS.
                    SCATTERED SHOWERS LINGERING AFTER MIDNIGHT.
MIN TEMPERATURE.....37-42.
MAX HUMIDITY........79-82 PERCENT.

20 FOOT WINDS.......NORTH WIND AT 7 TO 12 MPH WITH GUSTS TO 16
                    MPH UNTIL 2100.

                    GUSTY AND ERRATIC WIND NEAR SHOWERS AND
                    THUNDERSTORMS WITH GUSTS TO 30 MPH.

                    WIND BECOMING NORTH AT 5 TO 9 MPH WITH
                    GUSTS TO 12 MPH AFTER 2100.

                    WIND BECOMING DOWNSLOPE/DOWNVALLEY AT 5 TO 8 MPH
                    AFTER MIDNIGHT.

RIDGE TOP WINDS.....NORTH TO NORTHWEST AT 9 TO 13 MPH WITH GUSTS
                    TO 18 MPH UNTIL 2100.

                    THEN NORTH AT 6 TO 11 MPH AFTER 2100.

                    THEN WIND NORTHEAST TO EAST AT 6 TO 10 MPH
                    AFTER MIDNIGHT.

LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 500-1000 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AT 15 MPH UNTIL 2100.
                    THEN NORTH TO NORTHWEST AT 10 TO 15 MPH
                    THEN NORTHEAST TO EAST AT 10 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....DECREASING TO FAIR AFTER SUNSET...THEN POOR
                    AROUND MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY CLOUDY EARLY. THEN BECOMING
                    MOSTLY CLOUDY BY 1200. ISOLATED MORNING SHOWERS.
                    SCATTERED SHOWERS IN THE AFTERNOON WITH ISOLATED
                    THUNDERSTORMS.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........30-35 PERCENT.

20 FOOT WINDS.......SOUTH AT 5 TO 8 MPH IN THE MORNING.
                    SOUTH TO SOUTHWEST AT 6 TO 10 MPH IN THE
                    AFTERNOON.

                    GUSTY WIND TO 25 MPH NEAR THUNDERSTORMS
                    IN THE AFTERNOON.

RIDGE TOP WINDS.....SOUTH AT 6 TO 10 MPH IN THE MORNING.
                    SOUTH TO SOUTHWEST AT 8 TO 12 MPH WITH
                    GUSTS AROUND 15 MPH IN THE AFTERNOON.

LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.11 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 7500-8500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AT 10 MPH IN THE MORNING.
                    SOUTH TO SOUTHWEST AT 10 TO 15 MPH.
SMOKE DISPERSAL.....BECOMING FAIR IN THE MORNING.
                    THEN FAIR TO GOOD IN THE AFTERNOON.

.THURSDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE EVENING.
                    BECOMING PARTLY CLOUDY AFTER MIDNIGHT
                    WITH SHOWERS ENDING.
MIN TEMPERATURE.....38-42.
MAX HUMIDITY........80-85 PERCENT.

20 FOOT WINDS.......SOUTH WIND AT 5 TO 9 MPH UNTIL SUNSET.
                    THEN WIND BECOMING DOWNSLOPE/DOWNVALLEY
                    AT 4 TO 8 MPH BY MIDNIGHT.

                    GUSTY AND ERRATIC WIND TO 25 MPH
                    EXPECTED NEAR THUNDERSTORMS IN THE EVENING.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 6 TO 11 MPH UNTIL SUNSET.
                    THEN SOUTH TO SOUTHWEST AT 5 TO 9 MPH AFTER
                    SUNSET. THIS WOULD BE THE WIND ABOVE THE
                    LOW LEVEL INVERSION THAT WILL FORM IN THE
                    VALLEY FLOOR.

LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL IN THE VALLEY.
                    DECREASING TO 1000-2000 FT AGL ON THE RIDGETOPS.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AT 10 MPH. THIS WILL
                    BE THE TRANSPORT WIND ABOVE THE VALLEY INVERSION.
                    VALLEY TRANSPORT WIND WOULD BE A NORTH WIND
                    AT 5 TO 9 MPH.
SMOKE DISPERSAL.....FAIR AROUND SUNSET...THEN POOR BY MIDNIGHT.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED LATE AFTERNOON
                    SHOWERS.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........20-25 PERCENT.

20 FOOT WINDS.......SOUTH TO SOUTHWEST AT 5 TO 8 MPH IN THE
                    MORNING.
                    SOUTH TO SOUTHWEST AT 7 TO 11 MPH IN
                    THE AFTERNOON.

RIDGE TOP WINDS.....SOUTH AT 6 TO 10 MPH IN THE MORNING.
                    SOUTHWEST TO WEST AT 8 TO 13 MPH WITH
                    GUSTS TO 18 MPH IN THE AFTERNOON.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 8000-9000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AROUND 10 MPH IN THE MORNING.
                    SOUTHWEST TO WEST AT 15 TO 20 MPH IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....INCREASING TO GOOD BY 1200.
                    BECOMING TO VERY GOOD BY 1500.

.FORECAST DAYS...

.FRIDAY NIGHT...
MOSTLY CLEAR. LOWS 35-40. MAX RH...70-75 PERCENT.
SOUTHWEST WIND 6 TO 12 MPH UNTIL SUNSET.
WIND BECOMING DOWNSLOPE/DOWNVALLEY AFTER SUNSET AT 5 TO 8 MPH.

.SATURDAY...
MOSTLY CLEAR. HIGHS IN THE LOWER TO MID 70S. WEST TO SOUTHWEST
WIND 10 TO 15 MPH IN THE AFTERNOON.

.SUNDAY...
MOSTLY CLEAR. LOWS 38-44  HIGHS IN THE MID TO UPPER 70S.
WEST TO SOUTHWEST WIND 10 TO 15 MPH IN THE AFTERNOON.

$$
FORECASTER...ROSS
REQUESTED BY...FIRE DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20160824.BERRY.02/RIW


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