Suppression Forecast
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5

000
FNUS75 KRIW 210958
FWSRIW

SPOT FORECAST FOR BERRY FIRE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
358 AM MDT WED SEP 21 2016

FORECAST IS BASED ON REQUEST TIME OF 1958 MDT ON SEPTEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

FLOW TO BECOME MORE SOUTHWESTERLY THROUGH THE DAY AHEAD OF AN
APPROACHING AREA OF LOW PRESSURE. AS THIS FLOW SHIFTS...EXPECT
SHOWER ACTIVITY TO BECOME MORE WIDESPREAD WITH ISOLATED THUNDERSTORMS
POSSIBLE IN THE AFTERNOON. GUSTY WIND AND SMALL HAIL MAY BE
THREATS WITH STORMS TODAY. THUNDERSTORMS WILL WEAKEN WITH THE
LOSS OF DAYLIGHT...WITH SHOWER ACTIVITY BECOMING MORE WIDESPREAD
THROUGH THE OVERNIGHT HOURS. TEMPERATURES WILL BEGIN TO COOL
THURSDAY ACROSS THE AREA...WITH THIS TREND CONTINUING THROUGH
SATURDAY. THIS IMPRESSIVE AREA OF LOW PRESSURE WILL CONTINUE TO
BRING SHOWER ACTIVITY ACROSS THE FIRE INTO THE WEEKEND AS IT
APPROACHES THE STATE.

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

FORECASTER...BRANHAM

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT) BY 1300. ISOLATED
                    RAIN SHOWERS BECOMING SCATTERED BY 1600.
                    AFTERNOON THUNDERSTORMS POSSIBLE.
MAX TEMPERATURE.....64-67.
MIN HUMIDITY........34-37 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.9 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4600 FT AGL INCREASING TO 8400 FT AGL BY
                    1400.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....FAIR (54700 KNOT-FT) INCREASING TO VERY GOOD
                    (121300 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........CLOUDY (90-100 PERCENT). SCATTERED RAIN SHOWERS
                    WITH ISOLATED THUNDERSTORMS THROUGH 2300...THEN
                    RAIN SHOWERS LIKELY.
MIN TEMPERATURE.....44-47.
MAX HUMIDITY........90-95 PERCENT.
20 FOOT WINDS.......BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH BY 2000.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE EAST
                    AFTER 0100.
LAL.................2 UNTIL 2300...THEN 1.
CHC OF WETTING RAIN.75 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4700 FT AGL DECREASING TO 1600 FT AGL BY 0200.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH SHIFTING TO THE EAST 10
                    TO 15 MPH BY 0200.
SMOKE DISPERSAL.....POOR (15400-34900 KNOT-FT).

.THURSDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS.
MAX TEMPERATURE.....54-57.
MIN HUMIDITY........78-82 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.82 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-3300 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 16 MPH.
SMOKE DISPERSAL.....POOR (28100-34300 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...
SHOWERS LIKELY. LOWS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...
CLOUDY WITH SHOWERS LIKELY. LOWS AROUND 40. HIGHS IN THE UPPER
40S. EAST WINDS 10 TO 15 MPH.

.SATURDAY...
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE
MID 30S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS THAN
10 MPH.

.SUNDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.

$$
FORECASTER...BRANHAM
REQUESTED BY...CHRIS IVES
TYPE OF REQUEST...WILDFIRE
.TAG 20160920.BERRY.01/RIW



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