FNUS75 KRIW 290923
FWSRIW

SPOT FORECAST FOR WASHAKIE ASPEN 16 18...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
323 AM MDT THU MAR 29 2012

FORECAST IS BASED ON IGNITION TIME OF 1915 MDT ON MARCH 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HUMIDITIES NOT AS LOW THIS MORNING...WITH LIGHTER
WINDS TO START THE DAY TODAY. HOWEVER WINDS WILL INCREASE THROUGH
THE AFTERNOON...AND CONTINUE THROUGH THE NIGHT. THESE WINDS WILL
REMAIN STRONG THROUGH THE DAY ON FRIDAY. DRY...WARM AND WINDY
CONDITIONS WILL OCCUR ON SATURDAY...AS A COLD FRONT APPROACHES THE
AREA ON SUNDAY. ELEVATED FIRE BEHAVIOR WILL OCCUR AS A RESULT.



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

FORECASTER...LAVOIE

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........26-29 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 11 TO 18 MPH. GUSTS UP TO 25
                    MPH INCREASING TO 35 MPH LATE IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
                    AROUND 25 MPH LATE 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.......3500-4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (80500-100000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....32-35.
MAX HUMIDITY........63-66 PERCENT.
20 FOOT WINDS.......WEST WINDS 19 TO 21 MPH WITH GUSTS TO AROUND 40
                    MPH.
RIDGE TOP WINDS.....WEST AROUND 30 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 30 TO 40 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD.

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....53-56.
MIN HUMIDITY........25-28 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP TO 35
                    MPH INCREASING TO 45 MPH EARLY IN THE
                    AFTERNOON...THEN DECREASING TO 35 MPH LATE IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 25 MPH SHIFTING TO THE SOUTHWEST 30
                    TO 35 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.......2700-3700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS AROUND 30 MPH.

.SATURDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF SNOW SHOWERS DURING THE OVERNIGHT HOURS. LOWS AROUND 30.
HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 40 MPH.

.SUNDAY...COLDER. PARTLY CLOUDY. CHANCE OF SHOWERS...SNOW SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS AROUND 18. HIGHS IN THE LOWER
40S. WEST WINDS AROUND 19 MPH.

.MONDAY...MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID
40S. WEST WINDS AROUND 13 MPH.

$$

FORECASTER...LAVOIE
REQUESTED BY...ANDREW MCWILLIAMS
REASON FOR REQUEST...PRESCRIBED
.TAG 20120328.WASHA.02/RIW