FNUS75 KRIW 310858
FWSRIW

SPOT FORECAST FOR WASHAKIE ASPEN 16 18...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
258 AM MDT SAT MAR 31 2012

FORECAST IS BASED ON IGNITION TIME OF 2105 MDT ON MARCH 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A STORM SYSTEM WILL BE MOVING THROUGH THE AREA ON
SUNDAY. TODAY WILL SEE QUITE WINDY SOUTHWEST FLOW AHEAD OF THE
SYSTEM. THE BURN AREA SHOULD SEE WEST TO SOUTHWEST WIND AROUND 25
MPH WITH GUSTS OVER 40 MPH IN THE AFTERNOON. THE HUMIDITY WILL
DECREASE IN THE AFTERNOON...COMPARED TO FRIDAY...WHILE
TEMPERATURES WILL INCREASE SLIGHTLY. THE WIND WILL DECREASE
SOMEWHAT SATURDAY EVENING BEFORE SWITCHING TO THE NORTHWEST WITH
THE FRONTAL PASSAGE. EXPECTING THE FRONT AROUND 0900 SUNDAY
MORNING...WITH CHANCE OF PRECIPITATION THROUGHOUT THE DAY.

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

FORECASTER...MCDONALD

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....56-60.
MIN HUMIDITY........AROUND 20 PERCENT.
20 FOOT WINDS.......BREEZY. WEST WIND 10 TO 15 MPH BECOMING
                    SOUTHWEST 25 TO 30 MPH LATE IN THE MORNING.
                    GUSTS OVER 40 MPH LIKELY IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 20 MPH INCREASING TO 35 MPH IN
                    THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2300-3300 FT AGL INCREASING TO 4400-5400 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 20 MPH INCREASING TO 35 TO 40 MPH IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....FAIR (46000 KNOT-FT) INCREASING TO EXCELLENT
                    (200000 KNOT-FT) IN THE AFTERNOON.

.SATURDAY NIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........60-65 PERCENT.
20 FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 MPH WITHS GUSTS
                    OVER 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900-4900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 37 TO 44 MPH.
SMOKE DISPERSAL.....EXCELLENT (175900 KNOT-FT) DECREASING TO VERY
                    GOOD (120500 KNOT-FT) AFTER MIDNIGHT.

.SUNDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SCATTERED SNOW
                    SHOWERS IN THE MORNING. SCATTERED RAIN SHOWERS
                    THROUGH THE DAY. ISOLATED THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....45-48.
MIN HUMIDITY........30-40 PERCENT.
20 FOOT WINDS.......BREEZY. WEST WINDS AROUND 20 MPH BECOMING
                    NORTHWEST IN THE LATE MORNING. GUSTS UP TO
                    40 MPH ARE LIKELY.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH SHIFTING TO THE
                    NORTHWEST AROUND 25 MPH IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2900-3900 FT AGL INCREASING TO 5100-6100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (99700-127400 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...COLDER. MOSTLY CLOUDY. SCATTERED SNOW SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING...THEN ISOLATED SNOW
SHOWERS AFTER MIDNIGHT. LOWS AROUND 20. NORTHWEST WINDS AROUND
12 MPH.

.MONDAY...PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS IN THE MID
20S. HIGHS IN THE LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH.

.TUESDAY...WARMER. MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN
THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 50S. SOUTHWEST WINDS AROUND 13 MPH.

$$

FORECASTER...MCDONALD
REQUESTED BY...ANDY MCWILLIAMS
REASON FOR REQUEST...PRESCRIBED
.TAG 20120330.WASHA.02/RIW