Suppression Forecast
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
000
FNUS75 KRIW 191011
FWSRIW

SPOT FORECAST FOR BERRY FIRE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
411 AM MDT MON SEP 19 2016

FORECAST IS BASED ON REQUEST TIME OF 2209 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A TIGHTENED PRESSURE GRADIENT WILL AID IN THE DEVELOPMENT OF BREEZY
CONDITIONS TODAY. HUMIDITY IS EXPECTED TO STAY ABOVE CRITICAL
THRESHOLDS...THOUGH WIND OVER THE AREA MAY STILL CARRY THE FIRE IF
OPPORTUNITY PRESENTS ITSELF. THE GRADIENT WILL RELAX OVER THE AREA
OVERNIGHT...BUT GUSTY WIND IS EXPECTED TO RETURN TUESDAY AFTERNOON WITH
REDUCED HUMIDITY ALSO EXPECTED. THIS MAY AGAIN RESULT IN
INCREASED FIRE BEHAVIOR. SIMILAR CONDITIONS EXPECTED ON WEDNESDAY
WITH A POTENTIALLY SIGNIFICANT CHANGE TO COOLER TEMPERATURES AND
WIDESPREAD SHOWERS BY THURSDAY AFTERNOON.

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

FORECASTER...BRANHAM

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........37-40 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 15
                    TO 20 MPH WITH GUSTS TO AROUND 30 MPH BY 1200.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO WEST 20 TO
                    25 MPH BY 1200.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3600 FT AGL INCREASING TO 6900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 11 TO 16 MPH SHIFTING TO THE WEST 20
                    TO 25 MPH BY 1200.
SMOKE DISPERSAL.....FAIR (44500 KNOT-FT) INCREASING TO VERY GOOD
                    (145400 KNOT-FT) BY 1300.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....39-42.
MAX HUMIDITY........67-70 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
                    AROUND 30 MPH THROUGH 2000. THEN BECOMING
                    SOUTH-SOUTHWEST AT 8 TO 12 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH DECREASING TO 10 TO 15
                    MPH BY 0100.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4100 FT AGL DECREASING TO 700 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 14 TO 21 MPH.
SMOKE DISPERSAL.....FAIR (59900 KNOT-FT) DECREASING TO POOR (8100
                    KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (30-40 PERCENT) AFTER 1200.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST
                    AT 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH
                    BY 1200.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH INCREASING TO SOUTHWEST
                    AROUND 25 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.......4900 FT AGL INCREASING TO 9900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 14 TO 15 MPH INCREASING TO SOUTHWEST
                    AROUND 25 MPH AFTER 1300.
SMOKE DISPERSAL.....GOOD (61100 KNOT-FT) INCREASING TO EXCELLENT
                    (217800 KNOT-FT) BY 1400.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...
PARTLY CLOUDY. LOWS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS AROUND 40. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN
10 MPH.

.THURSDAY...
SHOWERS LIKELY AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S.
HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...
CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE UPPER 30S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS
THAN 10 MPH.

$$
FORECASTER...BRANHAM
REQUESTED BY...CHRIS IVES
TYPE OF REQUEST...WILDFIRE
.TAG 20160918.BERRY.02/RIW


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.