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 6 7 8 9 10 11 12 13 14 15 16

000
FNUS75 KRIW 170814
FWSRIW

SPOT FORECAST FOR LAVA MT...FS
NATIONAL WEATHER SERVICE RIVERTON WY
214 AM MDT SUN JUL 17 2016

FORECAST IS BASED ON REQUEST TIME OF 2332 MDT ON JULY 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

SOUTHWEST TO WEST FLOW ALOFT 20 TO 30 MPH WITH SURFACE FLOW BECOMING 10
TO 15 MPH WITH OCCASIONAL GUSTS NEAR 20 MPH BY AFTERNOON. SLIGHTLY BETTER
MOISTURE EXPECTED WITHIN THE AIR MASS TODAY WITH ISOLATED TO WIDELY
SCATTERED SHOWERS AND THUNDERSTORMS FROM NOON ONWARD INTO THE EVENING.
LITTLE TRANSIENT RAINFALL WITH GUSTY OUTFLOW WINDS 35 TO 45 MPH WILL
BE POSSIBLE WITH STRONGER SHOWERS AND THUNDERSTORMS. NO PRECIPITATION
CHANCES EXPECTED FOR MONDAY OR TUESDAY WITH A SLIGHTLY DRIER AIR MASS
IN PLACE.

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

FORECASTER...BRAUN

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT). ISOLATED TO
                    WIDELY SCATTERED SHOWERS AND THUNDERSTORMS IN
                    THE AFTERNOON.
MAX TEMPERATURE.....AROUND 67 TO 70.
MIN HUMIDITY........18-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 10
                    TO 15 MPH WITH HIGHER GUSTS IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO 15 TO 20
                    MPH IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.3 TO 8 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3200 FT AGL INCREASING TO 11400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 13 TO 22 MPH.
SMOKE DISPERSAL.....POOR (39700 KNOT-FT) EARLY INCREASING TO EXCELLENT
                    (207900 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY BECOMING MOSTLY CLEAR (25-35 PERCENT).
                    ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........66-71 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 8 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE EAST
                    AFTER MIDNIGHT.
LAL.................2 UNTIL 2200...THEN 1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......8700 FT AGL DECREASING TO 1700 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 12 TO 16 MPH SHIFTING TO THE EAST 12
                    TO 16 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD (102000 KNOT-FT) DECREASING TO POOR
                    (17300 KNOT-FT) AFTER MIDNIGHT.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........17-22 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 10
                    TO 15 MPH WITH HIGHER GUSTS IN THE AFTERNOON.
RIDGE TOP WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTH 10 TO
                    15 MPH IN THE LATE MORNING AND EARLY
                    AFTERNOON...THEN SHIFTING TO THE SOUTHWEST
                    AROUND 20 MPH LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 11400 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH SHIFTING TO THE SOUTH 12 TO
                    20 MPH IN THE LATE MORNING AND EARLY
                    AFTERNOON...THEN SHIFTING TO THE SOUTHWEST
                    AROUND 20 TO 25 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (17100 KNOT-FT) INCREASING TO EXCELLENT
                    (204200 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...
MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.
.TUESDAY...
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
7 TO 12 MPH.
.WEDNESDAY...
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
10 TO 15 MPH.
.THURSDAY...
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS 10 TO 15 MPH.

$$
FORECASTER...BRAUN
REQUESTED BY...JAY SLAGOWSKI
TYPE OF REQUEST...WILDFIRE
.TAG 20160716.LAVAM.03/RIW



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