FNUS75 KRIW 251508
FWSRIW

SPOT FORECAST FOR WASHAKIE ASPEN RX...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
908 AM MDT SUN MAR 25 2012

FORECAST IS BASED ON IGNITION TIME OF 1850 MDT ON MARCH 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...HIGH WIND WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY
EVENING...

.DISCUSSION...TODAY WILL BE THE WARMEST AND DRIEST DAY FOR THE
NEXT SEVERAL DAYS AS A STORM SYSTEM APPROACHES FROM THE WEST.
WIND SPEEDS WILL BE STEADILY ON THE RISE...PEAKING ON MONDAY
EVENING WITH SUSTAINED 40 MPH WINDS LIKELY...WITH GUSTS OVER 60 MPH
POSSIBLE. AT THE SAME TIME HOWEVER...TEMPERATURES WILL DROP ABOUT
30 DEGREES FROM THE EXPECTED HIGHS TODAY AND RHS WILL RISE WELL
ABOVE 40 PERCENT. THUNDERSTORMS ARE ALSO POSSIBLE WITH THE COLD
FRONTAL PASSAGE ON MONDAY MORNING...THE AIR REMAINS UNSTABLE BEHIND
THE FRONT AS WELL SO THUNDERSTORMS COULD CONTINUE INTO THE AFTERNOON
WITH STRONG THUNDERSTORM OUTFLOWS...LIGHTNING...AND SMALL HAIL BEING
THE MAIN THREATS. ONCE THE SYSTEM PASSES ON MONDAY...HIGH PRESSURE
WILL BUILD BACK IN FOR THE MIDDLE OF THE WEEK WITH SLOWLY
RISING TEMPERATURES AND SLOWLY LOWERING RHS AGAIN...TEMPERATURES
AND RHS COULD RETURN TO CURRENT LEVELS BY NEXT WEEKEND.

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

FORECASTER...ALLEN

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH...THEN BECOMING
                    SOUTHWEST 12 TO 19 MPH WITH GUSTS TO AROUND
                    35 MPH AFTER 1400.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH INCREASING TO AROUND 35
                    MPH AFTER 1500.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2900-3900 FT AGL INCREASING TO 6000-7000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 17 TO 24 MPH INCREASING TO AROUND 40
                    MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (56300 KNOT-FT) INCREASING TO VERY GOOD
                    (146800 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....36-39.
MAX HUMIDITY........45-48 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO
                    AROUND 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH INCREASING TO 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6100-7100 FT AGL DECREASING TO 3200-4200 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH INCREASING TO 40 MPH.
SMOKE DISPERSAL.....EXCELLENT (162200 KNOT-FT) DECREASING TO GOOD
                    (81000 KNOT-FT) AFTER MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
                    SHOWERS THROUGH THE DAY. ISOLATED THUNDERSTORMS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....51-54.
MIN HUMIDITY........28-31 PERCENT.
20 FOOT WINDS.......BREEZY. SOUTHWEST WINDS 17 TO 24 MPH WITH GUSTS
                    TO AROUND 45 MPH SHIFTING TO THE WEST AROUND 29
                    MPH WITH GUSTS TO AROUND 55 MPH LATE IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH INCREASING TO 35 TO 40
                    MPH IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.20 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3100-4100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 25 TO 35 MPH INCREASING TO 50 TO 55
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (75600 KNOT-FT) INCREASING TO VERY GOOD
                    (140500 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...COLDER. MOSTLY CLOUDY. CHANCE OF SHOWERS...SNOW
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS
IN THE LOWER 20S. WEST WINDS AROUND 40 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID
40S. WEST WINDS AROUND 25 MPH DECREASING TO 15 MPH.
.WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 15 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. WEST
WINDS AROUND 14 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...JACOB BINNS
REASON FOR REQUEST...PRESCRIBED
.TAG 20120324.WASHA.01/RIW