FNUS75 KRIW 091042
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
442 AM MDT WED MAY 9 2012

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MAY 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY AND WARM CONDITIONS AGAIN TODAY. HUMIDITIES WILL
BE SLIGHTLY LOWER THAN YESTERDAY. AFTERNOON HIGH TEMPERATURES
WILL BE SIMILAR TO YESTERDAY. CONDITIONS WILL DETERIORATE
TOMORROW WITH AN APPROACHING COLD FRONT...THAT IS EXPECTED TO MOVE
THROUGH THE AREA SHORTLY AFTER 12PM. WINDS WILL SWITCH TO THE
NORTHWEST AND INCREASE SIGNIFICANTLY A COUPLE OF HOURS AFTERWARD.
AFTERNOON TEMPERATURES WILL NOT BE AS WARM...AND RELATIVE
HUMIDITIES WILL BE HIGHER AS WELL.


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

FORECASTER...LAVOIE

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3400-4400 FT AGL INCREASING TO 7700-9000 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH SHIFTING TO THE SOUTHWEST 8 TO 13 MPH
                    IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD AFTER 12PM (32700-90000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT).
MIN TEMPERATURE.....46-49.
MAX HUMIDITY........40-43 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7500-8500 FT AGL DECREASING TO 1000-2000 FT AGL
                    AFTER 9PM.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHEAST 9
                    TO 10 MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR AFTER 9PM (20100 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
                    SHOWERS IN THE MORNING...THEN SCATTERED RAIN
                    SHOWERS AND ISOLATED THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....63-66.
MIN HUMIDITY........27-30 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST
                    AROUND 15 MPH WITH GUSTS UP TO 25 MPH BY 3PM.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE WEST IN
                    THE EARLY AFTERNOON...THEN SHIFTING TO THE NORTHWEST
                    AROUND 25 MPH LATE IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.6 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE
                    GROWTH.
MIXING HEIGHT.......1900-2900 FT AGL INCREASING TO 4600-5600 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 9 MPH SHIFTING TO THE SOUTHWEST AROUND
                    10 MPH LATE IN THE MORNING...THEN INCREASING TO WEST 20
                    TO 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO VERY GOOD AFTER 12PM (27400-110000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...COLDER. MOSTLY CLOUDY. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 30S.
NORTH WINDS AROUND 11 MPH.
.FRIDAY...COOLER. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LAVOIE
REQUESTED BY...JACK MONONI
REASON FOR REQUEST...PRESCRIBED
.TAG 20120509.WESTS.01/RIW