FNUS75 KRIW 232312
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...FOREST SERVICE
NATIONAL WEATHER SERVICE RIVERTON WY
512 PM MDT FRI MAR 23 2012

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MARCH 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY WEATHER EXPECTED TONIGHT AND SATURDAY. THE WIND WILL
GRADUALLY DECREASE THIS EVENING. THEN A WEAK COLD FRONT WILL CAUSE A
WIND SHIFT TO THE NORTH OR NORTHWEST LATE TONIGHT. SATURDAY WILL START
WITH LIGHT WIND IN THE MORNING...THEN THE SOUTH TO SOUTHEAST WIND WILL
REDEVELOP IN THE AFTERNOON BUT NOT NEARLY AS STRONG AS TODAY. SUNDAY
WILL BE DRY WITH HIGHER WIND SPEEDS IN THE AFTERNOON. TEMPERATURES
TO BE COOLER SATURDAY THEN WARMER ON SUNDAY.

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

FORECASTER...AR

.REST OF TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....37-42.
MAX HUMIDITY........65-70 PERCENT.

20 FOOT WINDS.......SOUTH TO SOUTHEAST AT 18 TO 23 MPH UNTIL 2000
                    WITH GUSTS TO 30 MPH.
                    THEN SOUTH TO SOUTHEAST AT 8 TO 13 MPH AFTER 2000.
                    THEN NORTH TO NORTHWEST AT 5 TO 9 MPH AFTER 0200.

RIDGE TOP WINDS.....SOUTH TO SOUTHEAST AT 22 TO 27 MPH UNTIL 2000
                    WITH GUSTS TO 35 MPH.
                    THEN SOUTH TO SOUTHEAST 12 TO 17 MPH AFTER 2000.
                    THEN NORTH TO NORTHWEST AT 6 TO 10 MPH AFTER 0200.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1500 FT AGL AFTER MIDNIGHT.

TRANSPORT WINDS.....SOUTH TO SOUTHWEST AT 25 MPH UNTIL 2000.
                    THEN SOUTH TO SOUTHEAST AT 15 MPH AFTER 2000.
                    THEN SHIFTING TO THE NORTH TO NORTHWEST AROUND 10 MPH
                    AFTER 0200.

SMOKE DISPERSAL.....VERY GOOD...DECREASING TO POOR AFTER MIDNIGHT.

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....63-67.
MIN HUMIDITY........22-28 PERCENT.

20 FOOT WINDS.......EAST TO SOUTHEAST AT 4 TO 7 MPH UNTIL 1200.
                    SOUTH TO SOUTHEAST AT 8 TO 13 MPH AFTER 1200
                    WITH GUSTS TO 18 MPH.

RIDGE TOP WINDS.....EAST TO SOUTHEAST AT 5 TO 10 MPH UNTIL 1200.
                    THEN SOUTH TO SOUTHEAST AT 10 TO 15 MPH AFTER 1200
                    WITH GUSTS TO 21 MPH.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 5000 FT AGL.

TRANSPORT WINDS.....SOUTH TO SOUTHEAST AROUND 10 MPH UNTIL 1200.
                    THEN SOUTH AT 15 MPH AFTER 1200.

SMOKE DISPERSAL.....POOR...BECOMING GOOD BY 1400.

.FORECAST DAYS 3 THROUGH 5...

.SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST WINDS
GENERALLY LESS THAN 10 MPH AFTER SUNSET.

.SUNDAY...MOSTLY CLEAR. HIGHS AROUND 75. SOUTH TO SOUTHEAST AT 15 TO 20
MPH IN THE AFTERNOON.

.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 70.
SOUTH WINDS 15 TO 25 MPH.

.TUESDAY...COOLER. PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN
THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ROSS
REQUESTED BY...CDC
REASON FOR REQUEST...PRESCRIBED
.TAG 20120323.WESTS.02/RIW