FNUS75 KRIW 170545
FWSRIW

SPOT FORECAST FOR WEST SOPE RX...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
1145 PM MDT FRI MAR 16 2012

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MARCH 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SOUTH FLOW WILL STRENGTHEN TODAY AHEAD OF A COLD
FRONT THAT WILL PUSH ACROSS THE AREA LATE SUNDAY. SOUTHEAST WINDS
WILL GRADUALLY INCREASE THROUGH THE MORNING WITH SOUTH SOUTHEAST
WIND AT 20 TO 30 MPH WITH GUSTS TO 40 MPH EXPECTED BY EARLY
AFTERNOON. TEMPERATURES AND RELATIVE HUMIDITY WILL SHOW LITTLE
TREND FROM THE WARM AND DRY READINGS ON FRIDAY. WINDS WILL SUBSIDE
SOMEWHAT AFTER SUNSET SATURDAY NIGHT BUT REMAIN QUITE GUSTY
THROUGH SUNDAY AFTERNOON. A UPPER TROUGH AND ASSOCIATED COLD FRONT
WILL MOVE ACROSS THE AREA EARLY SUNDAY EVENING WITH A COLDER
NORTHWEST FLOW BEHIND THE FRONT. MUCH COLDER WEATHER IS EXPECTED
MONDAY WITH LIGHT SNOW ACCUMULATIONS POSSIBLE.


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

FORECASTER...MEUNIER

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MAX TEMPERATURE.....67-70.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHEAST 15
                    TO 20 MPH IN THE LATE MORNING...INCREASING TO 20 TO 30 MPH
                    WITH GUSTS TO 40 MPH BY 1400L.
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH INCREASING TO 25 TO 30 MPH
                    IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500 FT AGL INCREASING TO 7700 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH 25 TO 30 MPH.
SMOKE DISPERSAL.....VERY GOOD (109000 KNOT-FT) INCREASING TO
                    EXCELLENT (191700 KNOT-FT) IN THE AFTERNOON.

.SATURDAY NIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (55-65 PERCENT).
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........62-65 PERCENT.
20 FOOT WINDS.......SOUTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO AROUND 40 MPH
                    THROUGH SUNSET...THEN DECREASING TO 15 TO 20 MPH OVERNIGHT.
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000-5500 FT AGL.
TRANSPORT WINDS.....SOUTH 25 TO 30 MPH.
SMOKE DISPERSAL.....VERY GOOD (113300-149800 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    THUNDERSTORMS AND ISOLATED RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....60-63.
MIN HUMIDITY........25-28 PERCENT.
20 FOOT WINDS.......SOUTHEAST WINDS 17 TO 22 MPH WITH GUSTS TO
                    AROUND 40 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH INCREASING TO AROUND 25 MPH
                    LATE IN THE MORNING...THEN BECOMING SOUTHEAST
                    AROUND 15 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5600-6600 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (75900-102500 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AND
ISOLATED SHOWERS IN THE EVENING...THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 30S. SOUTH WINDS AROUND 10 MPH.

.MONDAY...COLDER. MOSTLY CLOUDY. SCATTERED SHOWERS AND CHANCE OF
SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 40S.
WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...WARMER. PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS
IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...BOB BUHR
REASON FOR REQUEST...PRESCRIBED
.TAG 20120317.WESTS.01/RIW