FNUS75 KRIW 230544
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...FOREST SERVICE
NATIONAL WEATHER SERVICE RIVERTON WY
1144 PM MDT THU MAR 22 2012

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MARCH 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY WEATHER WILL OCCUR TODAY THROUGH SUNDAY. TEMPERATURES
WILL BE WARM DURING THE DAY WITH FAIRLY MILD NIGHTTIME LOWS. THE MAJOR
ISSUE WILL BE THE WIND AT THE BURN SITE. IT APPEARS TODAY WILL BE
A LITTLE WINDIER THAN YESTERDAY. 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 AS STRONG AS TODAY. SUNDAY WILL
SEE WIND SPEEDS SIMILAR TO TODAY.

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

FORECASTER...AR

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........22-27 PERCENT.

20 FOOT WINDS.......EAST TO SOUTHEAST AT 5 TO 10 MPH UNTIL 1100.
                    SOUTH TO SOUTHEAST AT 13 TO 18 MPH WITH GUSTS
                    TO 22 MPH AFTER 1100.

RIDGE TOP WINDS.....EAST TO SOUTHEAST AT 10 TO 15 MPH UNTIL 1100.
                    SOUTH TO SOUTHEAST AT 17 TO 22 MPH WITH GUSTS TO
                    27 MPH AFTER 1100.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 6000 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST 20 TO 25 MPH.
SMOKE DISPERSAL.....BECOMING VERY GOOD BY 1400.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....38-42.
MAX HUMIDITY........70-75 PERCENT.

20 FOOT WINDS.......SOUTH TO SOUTHEAST AT 10 TO 15 MPH UNTIL 2000.
                    THEN SOUTHEAST AT 5 TO 10 MPH AFTER 2000.
                    THEN NORTH TO NORTHWEST AT 5 TO 8 MPH AFTER 0300.

RIDGE TOP WINDS.....SOUTH TO SOUTHEAST AROUND 15 MPH UNTIL 2000.
                    THEN SOUTHEAST AROUND 10 MPH AFTER 2000.
                    THEN NORTH TO NORTHWEST AT 6 TO 10 MPH AFTER 0300.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1300 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST 10 TO 15 MPH.
                    BECOMING NORTH TO NORTHWEST AROUND 10 MPH AFTER 0300.

SMOKE DISPERSAL.....GOOD UNTIL 2100...THEN BECOMING POOR AFTER MIDNIGHT.

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....64-68.
MIN HUMIDITY........27-32 PERCENT.

20 FOOT WINDS.......EAST TO SOUTHEAST AT 4 TO 7 MPH UNTIL 1100.
                    SOUTH TO SOUTHEAST AT 8 TO 13 MPH AFTER 1100.

RIDGE TOP WINDS.....EAST TO SOUTHEAST AT 5 TO 10 MPH UNTIL 1100.
                    THEN SOUTH TO SOUTHEAST AT 10 TO 15 MPH AFTER 1100
                    WITH GUSTS TO 20 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 4500-5000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AT 5 TO 10 MPH BY 1200.
                    SOUTH TO SOUTHEAST AT 10 TO 15 MPH AFTER 1200.

SMOKE DISPERSAL.....POOR...BECOMING

.FORECAST DAYS 3 THROUGH 5...

.SATURDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH TO
SOUTHEAST WINDS AROUND 10 MPH.

.SUNDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
SOUTH TO SOUTHEAST WINDS 15 TO 20 MPH.

.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
SOUTH WINDS 15 TO 20 MPH.

.TUESDAY...COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS
THAN 10 MPH.

$$

FORECASTER...ROSS
REQUESTED BY...CDC
REASON FOR REQUEST...PRESCRIBED
.TAG 20120322.WESTS.02/RIW