FNUS75 KRIW 042100
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
300 PM MDT MON APR 4 2011

FORECAST IS BASED ON IGNITION TIME OF 1455 MDT ON APRIL 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

ZONAL WEST FLOW ALOFT WILL BE OVER THE BURN AREA TONIGHT AND
TUESDAY. WINDS WILL BE RELATIVELY LIGHT THIS EVENING...THEN BEGIN
TO PICK UP FROM THE SOUTHEAST TO SOUTH BY SUNRISE TUESDAY. A COLD
FRONT WILL MOVE THROUGH IN THE EARLY AFTERNOON...ESTIMATED TO BE
BETWEEN 1300 AND 1400 MDT. THIS WILL BRING A WIND SHIFT FROM THE
NORTHWEST TO NORTH...A 180 DEGREE SHIFT. ISOLATED RAIN SHOWERS ARE
POSSIBLE WITH AND BEHIND THE FRONT THROUGHOUT THE AFTERNOON AND
EARLY EVENING.

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

FORECASTER...T.BAKER

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT).
MIN TEMPERATURE.....32-35.
MAX HUMIDITY........61-64 PERCENT.
20 FOOT WINDS.......SOUTH WIND 3 TO 6 MPH...INCREASING TO 5 TO 10 MPH
                    WITH GUSTS TO 15 MPH AROUND 0400 MDT.
RIDGE TOP WINDS.....SOUTH 4 TO 8 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL DECREASING TO 1500 FT AGL BY 2100 MDT.
TRANSPORT WINDS.....SOUTHWEST 15 MPH...DECREASING TO 10 MPH AROUND
                    2100 MDT
SMOKE DISPERSAL.....GOOD (60000 KNOT-FT) THROUGH 2100 MDT...THEN POOR
                    (22500 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........CLOUDY (80-90 PERCENT). ISOLATED RAIN SHOWERS IN
                    THE AFTERNOON.
MAX TEMPERATURE.....50-55.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......SOUTH TO SOUTHEAST WINDS 8 TO 12 MPH WITH GUSTS
                    TO 15 MPH SHIFTING TO THE NORTHWEST TO NORTH
                    10 TO 15 MPH GUSTS TO 20 MPH BETWEEN 1300 AND
                    1400 MDT.
RIDGE TOP WINDS.....SOUTH 10 TO 15 GUSTS TO 20 MPH SHIFTING TO THE
                    NORTHWEST TO NORTH 12 TO 17 MPH GUSTS TO 25 MPH
                    BETWEEN 1300 AND 1400 MDT.
LAL.................1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH...SHIFTING TO THE NORTHWEST
                    AT 20 MPH IN THE EARLY AFTERNOON.
SMOKE DISPERSAL.....FAIR (45000 KNOT-FT) INCREASING TO GOOD
                    (80000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...CLOUDY. CHANCE OF RAIN AND SNOW IN THE EVENING...
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE UPPER 20S.
NORTH WINDS AROUND 14 MPH.
.WEDNESDAY...MOSTLY CLOUDY. CHANCE OF SNOW AND SLIGHT CHANCE OF
RAIN. LOWS IN THE UPPER 20S. HIGHS AROUND 50. WINDS GENERALLY
LESS THAN 10 MPH.
.THURSDAY...CLOUDY WITH SCATTERED SHOWERS AND CHANCE OF SNOW.
LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. WINDS GENERALLY
LESS THAN 10 MPH.
.FRIDAY...COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS IN THE
MID 20S. HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN
10 MPH.
.SATURDAY...MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS IN THE UPPER
20S. HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...T.BAKER
REQUESTED BY...MONONI
REASON FOR REQUEST...PRESCRIBED
.TAG 20110404.WESTS.02/RIW