Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 240447
FWSRIW

SPOT FORECAST FOR BERRY...GRAND TETON NATIONAL PARK
NATIONAL WEATHER SERVICE RIVERTON WY
1047 PM MDT TUE AUG 23 2016

FORECAST IS BASED ON REQUEST TIME OF 2052 MDT ON AUGUST 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY OVERNIGHT THROUGH WEDNESDAY MIDDAY. ISOLATED
SHOWERS OR THUNDERSTORMS AFTER 1500 WEDNESDAY AFTERNOON AND
EVENING. ISOLATED SHOWERS AND THUNDERSTORMS ON THURSDAY. WIND
FORECAST WILL BE VERY TRICKY ON WEDNESDAY AND MAY BE TERRAIN
DRIVEN OR FIRE DRIVEN. THERE WILL BE SHIFTING WIND WEDNESDAY
NIGHT AS A COLD FRONT MOVES INTO THE REGION. THEN THE WIND
TURNS BACK TO A MORE SOUTH DIRECTION ON THURSDAY AND TERRAIN
DRIVEN ONCE AGAIN DUE TO THE FIRE LOCATION.

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

FORECASTER...AR

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........45-49 PERCENT.

20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY AT 4 TO 7 MPH IN THE
                    VALLEY.

RIDGE TOP WINDS.....NORTH TO NORTHWEST 5 TO 10 MPH.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1000 FT AGL.
TRANSPORT WINDS.....NORTH TO NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....DECREASING TO POOR AFTER MIDNIGHT.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING.
                    BECOMING PARTLY CLOUDY IN THE AFTERNOON.
                    ISOLATED SHOWERS AND THUNDERSTORMS
                    LATE IN THE AFTERNOON AFTER 1500.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........18-21 PERCENT.

20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 4 TO 7 MPH UNTIL 1100.
                    SOUTH TO SOUTHWEST AT 5 TO 9 MPH AFTER 1100.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS UP TO 30 MPH.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 5 TO 9 MPH UNTIL 1100.
                    SOUTH TO SOUTHWEST AT 8 TO 12 MPH AFTER 1100.

LAL.................1 UNTIL 1500...THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 8000-9000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AT 5 TO 10 MPH UNTIL 1100.
                    SOUTHWEST AT 10 TO 15 MPH AFTER 1100.
SMOKE DISPERSAL.....BECOMING GOOD BY 1200. THEN GOOD TO VERY GOOD
                    AFTER 1200.

.WEDNESDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING. ISOLATED
                    RAIN SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....36-40.
MAX HUMIDITY........73-76 PERCENT.

20 FOOT WINDS.......NORTH WIND AT 7 TO 11 MPH WITH GUSTS TO 15 MPH
                    UNTIL 2100.
                    THEN NORTH TO NORTHEAST AT 5 TO 9 MPH AFTER 2100.

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

RIDGE TOP WINDS.....NORTH TO NORTHWEST AT 8 TO 12 MPH UNTIL 2100.
                    NORTH TO NORTHEAST AT 7 TO 11 MPH AFTER 2100.

LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 500-1000 FT AGL.
TRANSPORT WINDS.....NORTH WIND AROUND 10 MPH.
SMOKE DISPERSAL.....BECOMING FAIR AROUND SUNSET...THEN POOR BY MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....61-65.
MIN HUMIDITY........28-31 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 5 TO 9 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH TO SOUTHEAST 5 TO 10 MPH IN THE MORNING.
                    SOUTH TO SOUTHWEST AT 10 TO 15 MPH IN THE
                    AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 5500-6500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH TO SOUTHEAST AT 5 TO 10 MPH IN THE MORNING.
                    SOUTHWEST AT 10 TO 15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....BECOMING FAIR BY 1200. FAIR TO GOOD AFTER 1200.

.FORECAST DAYS 3 THROUGH 5...

.THURSDAY NIGHT...
ISOLATED EVENING SHOWERS AND THUNDERSTORMS  THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 34 TO 38. WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...
PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...ROSS
REQUESTED BY...FIRE DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20160823.BERRY.01/RIW



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