Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 201030
FWSRIW

SPOT FORECAST FOR BERRY FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
430 AM MDT TUE SEP 20 2016

FORECAST IS BASED ON REQUEST TIME OF 1953 MDT ON SEPTEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

SIMILAR CONDITIONS TODAY AS TUESDAY...WITH GUSTY WINDS THIS
AFTERNOON THAT WILL QUICKLY SUBSIDE AROUND SUNSET. HUMIDITY IS
EXPECTED TO STAY ABOVE CRITICAL LEVELS AGAIN TODAY...BUT WILL STILL
BE A CONCERN. MOISTURE IN THE AREA WILL INCREASE WEDNESDAY AND BE
HIGH THROUGH THE REST OF THE WEEK. A COLD FRONT WILL MOVE INTO THE
AREA WEDNESDAY EVENING...BRINGING COLDER AND WETTER CONDITIONS
WITH IT.

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

FORECASTER...LAVOIE

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTHWEST 15
                    TO 20 MPH WITH GUSTS TO AROUND 30 MPH BY 1200.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 40 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL INCREASING TO 10200 FT AGL BY 1300.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
                    AROUND 25 MPH WITH GUSTS UP TO 30 MPH BY 1300.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT AFTER 1200.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........57-60 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO
                    AROUND 25 MPH DECREASING TO 7 TO 15 MPH AFTER
                    SUNSET...BECOMING UPSLOPE 5 TO 10 MPH AFTER
                    MIDNIGHT.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH SHIFTING TO THE SOUTH-
                    SOUTHWEST 15 TO 20 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5700 FT AGL IN THE EVENING THEN 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH 13 TO 20 MPH.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR AFTER MIDNIGHT.

.WEDNESDAY...

SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTH-SOUTHWEST
                    15 TO 20 MPH WITH GUSTS UP TO 25 MPH EARLY IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE SOUTH-
                    SOUTHWEST AFTER 3PM.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.7 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500 FT AGL INCREASING TO 7100 FT AGL AFTER 1200.
TRANSPORT WINDS.....SOUTH-SOUTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO VERY GOOD AFTER 1200.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING...THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE MID
40S. SOUTHWEST WINDS BECOMING NORTHEAST 20 TO 30 MPH AFTER 9PM.
WINDS BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
.THURSDAY...
COOLER. SHOWERS LIKELY. LOWS IN THE MID 40S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...
CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED SNOW SHOWERS. LOWS IN
THE LOWER 40S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS THAN
10 MPH.
.SATURDAY...
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE MID 30S. HIGHS
AROUND 50. WINDS GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...LAVOIE
REQUESTED BY...CHRIS IVES
TYPE OF REQUEST...WILDFIRE
.TAG 20160919.BERRY.01/RIW



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