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
000
FNUS75 KRIW 211303
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MOUNTIAN...BLM CAD
NATIONAL WEATHER SERVICE RIVERTON WY
703 AM MDT SAT MAR 21 2015

FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON MARCH 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

DRY AND WARM CONDITIONS EXPECTED TODAY...WITH BREEZY SOUTH TO
SOUTHWEST WINDS DEVELOPING. A WEAK SYSTEM SLIDING NORTH OF THE AREA LATE
THIS AFTERNOON AND TONIGHT COULD RESULT IN A FEW RAIN SHOWERS...AS
WELL AS CAUSING A WIND SHIFT TO THE NORTHWEST TO NORTH IN WAKE OF
A WEAK COLD FRONT THIS EVENING. GUSTY WINDS TO 30 MPH COULD OCCUR
THIS AFTERNOON AND EVENING. WINDS ARE EXPECTED TO WEAKEN BETWEEN
MIDNIGHT AND 3 AM. WINDS ARE EXPECTED TO BE MAINLY SOUTHERLY
SUNDAY WITH SLIGHTLY COOLER CONDITIONS.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (25 PERCENT)...BECOMING MOSTLY
                    CLOUDY THIS AFTERNOON. (75+ PERCENT).
MAX TEMPERATURE.....65.
MIN HUMIDITY........13-16 PERCENT.
20 FOOT WINDS.......SOUTH 5-10 MPH...BECOMING SOUTH TO SOUTHWEST
                    10-15 MPH BETWEEN NOON AND 2 PM...THEN SWITCHING
                    TO THE WEST BETWEEN 4 PM AND 6 PM. GUSTS TO 25
                    MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10-15 MPH...BECOMING SOUTHWEST TO WEST 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.......6000-7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH SOUTHWEST AROUND 15 MPH SHIFTING
                    TO THE SOUTHWEST 20 TO 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (51800 KNOT-FT) INCREASING TO EXCELLENT
                    (152000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (75 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). ISOLATED RAIN
                    SHOWERS THROUGH THE NIGHT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........AROUND 60 PERCENT.
20 FOOT WINDS.......SOUTHWEST TO WEST WINDS 10-15 MPH SHIFTING TO THE
                    NORTHWEST TO NORTH AROUND 15 MPH AROUND 8 PM
                    DECREASING TO 5-10 MPH BY MIDNIGHT...THEN LIGHT
                    AND VARIABLE BY 3 AM. GUSTS UP TO 30 MPH IN THE EVENING.
RIDGE TOP WINDS.....SOUTHWEST TO WEST AROUND 15 MPH SHIFTING TO THE
                    NORTHWEST TO NORTH AROUND 15 MPH IN THE EVENING
                    THEN DECREASING TO 5-10 MPH BY AROUND MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1500 FT AGL BY 9 PM.
TRANSPORT WINDS.....WEST 15-25 MPH BECOMING NORTH AROUND 15 MPH IN
                    THE EVENING THEN BECOMING LIGHT AND VARIABLE
                    BY 3 AM.
SMOKE DISPERSAL.....EXCELLENT (150200 KNOT-FT) DECREASING TO POOR
                    (24900 KNOT-FT) BY AROUND 9 PM.

.SUNDAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED RAIN
                    SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........17-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTH AROUND
                    10 MPH WITH HIGHER GUSTS EARLY IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 5 MPH INCREASING TO SOUTHWEST
                    AROUND 15 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4800-5800 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 5-10 MPH...BECOMING SOUTH TO SOUTHWEST
                    AROUND 15 MPH.
SMOKE DISPERSAL.....POOR (29400 KNOT-FT) INCREASING TO GOOD (98100
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.

.MONDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS
IN THE LOWER 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS
THAN 10 MPH.

.TUESDAY...COLDER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...SAGE DECKER
REASON FOR REQUEST...PRESCRIBED
.TAG 20150321.NORTH.01/RIW






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