FNUS75 KRIW 011120
FWSRIW

SPOT FORECAST FOR POLE RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
520 AM MDT TUE MAY 1 2012

FORECAST IS BASED ON IGNITION TIME OF 0925 MDT ON APRIL 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...THE STORM SYSTEM THAT MOVED ACROSS THE AREA OVERNIGHT
WILL GRADUALLY PUSH SOUTH OUT OF THE AREA THIS MORNING. ANOTHER SYSTEM
WILL BRUSH THE AREA BY WEDNESDAY MORNING WITH ADDITIONAL CLOUDINESS
AND A SLIGHT CHANCE OF RAIN SHOWERS...MIXED WITH SNOW EARLY. STRONG
WEST WINDS WILL BE NOTED EACH DAY FROM LATE MORNING THROUGH THE AFTERNOON
HOURS.

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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........CLOUDY (80-90 PERCENT) THEN BECOMING PARTLY
                    CLOUDY (40-50 PERCENT) IN THE LATE MORNING.
                    SCATTERED RAIN AND SNOW SHOWERS IN THE MORNING
                    ...THEN ISOLATED RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....46-49.
MIN HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......WEST WINDS 11 TO 17 MPH. GUSTS 25 TO 30 MPH IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH
                    IN THE AFTERNOON WITH GUSTS TO 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.20 PERCENT IN THE MORNING.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1000-1500 FT AGL INCREASING TO 3500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 17 TO 25 MPH.
SMOKE DISPERSAL.....POOR (27000 KNOT-FT) INCREASING TO GOOD (75000
                    KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) WITH A SLIGHT
                    CHANCE OF A SPRINKLE OR FLURRY TOWARDS MORNING.
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........80-83 PERCENT.
20 FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
                    30 MPH IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH BECOMING SOUTHWEST 5 TO 10 MPH
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 22 MPH BECOMING SOUTHWEST AROUND 6
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....FAIR (54000 KNOT-FT) DECREASING TO POOR (3000
                    KNOT-FT) AFTER MIDNIGHT.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT) AFTER 1200L.
MAX TEMPERATURE.....45-48.
MIN HUMIDITY........29-33 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND
                    17 MPH WITH GUSTS TO AROUND 30 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO WEST
                    AROUND 25 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1300-2300 FT AGL INCREASING TO 4000-5000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH INCREASING TO WEST
                    AROUND 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (28600 KNOT-FT) INCREASING TO VERY GOOD
                    (110000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS
AROUND 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH SCATTERED SHOWERS...THUNDERSTORMS
AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S.
SOUTHWEST WINDS AROUND 10 MPH.
.FRIDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF SNOW SHOWERS. LOWS AROUND 30. HIGHS IN THE LOWER 50S.
SOUTHWEST WINDS AROUND 12 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...STEVE MARKASON
REASON FOR REQUEST...PRESCRIBED
.TAG 20120430.POLER.01/RIW