FNUS75 KRIW 301213
FWSRIW

SPOT FORECAST FOR WASHAKIE ASPEN 16 18...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
613 AM MDT FRI MAR 30 2012

FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON MARCH 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WESTERLY FLOW ALOFT WILL INCREASE ACROSS THE AREA
THIS MORNING...BRINGING BREEZY CONDITIONS TO THE BURN SITE. TEMPERATURES
WILL TREND WARMER...WHILE RELATIVE HUMIDITIES WILL BE SIMILAR TO THURSDAY.
HIGH CLOUDS WILL MOVE INTO THE AREA THIS AFTERNOON. WINDS WILL BACK
TO THE SOUTHWEST SATURDAY...BECOMING VERY WINDY. THIS WILL COMBINE WITH
WARMER AND DRIER CONDITIONS TO INCREASE THE LIKELIHOOD OF EXTREME FIRE
BEHAVIOR SATURDAY AFTERNOON. A STRONG COLD FRONT WILL PUSH ACROSS THE
REGION MID-DAY SUNDAY...BRINGING CONTINUED WINDY CONDITIONS...A SHARP
WIND SHIFT FROM THE NORTHWEST...AND A FEW SHOWERS.


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

FORECASTER...WOLCOTT

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING (10-20 PERCENT)...BECOMING
                    MOSTLY CLOUDY IN THE AFTERNOON (70-80 PERCENT).
MAX TEMPERATURE.....51-54.
MIN HUMIDITY........28-31 PERCENT.
20 FOOT WINDS.......BREEZY. WEST WINDS 22 TO 27 MPH WITH GUSTS TO
                    AROUND 45 MPH.
RIDGE TOP WINDS.....WEST 35 TO 40 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-3400 FT AGL...INCREASING TO 4000 TO 5000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 35 TO 40 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (89200-140000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....33-36.
MAX HUMIDITY........69-72 PERCENT.
20 FOOT WINDS.......WINDY. WEST WINDS 25 TO 30 MPH. GUSTS OF 45 TO
                    50 MPH.
RIDGE TOP WINDS.....WEST 35 TO 40 MPH INCREASING TO 40 TO 45 MPH
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2300-3300 FT AGL.
TRANSPORT WINDS.....WEST 37 TO 45 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (80100-114600 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....58-61.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH. GUSTS UP
                    TO 45 MPH...GUSTS UP TO 55 MPH LATE IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 35 TO 40 MPH INCREASING TO AROUND 45
                    MPH LATE 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.......2100-3100 FT AGL INCREASING TO 4100-5100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 39 TO 45 MPH.
SMOKE DISPERSAL.....GOOD (91000 KNOT-FT) INCREASING TO EXCELLENT
                    (172200 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...BREEZY. PARTLY CLOUDY. LOWS IN THE MID 30S.
SOUTHWEST WINDS AROUND 29 MPH.

.SUNDAY...COOLER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS
AROUND 18. HIGHS IN THE MID 40S. SOUTHWEST WINDS 25 TO 30 MPH...
SHIFTING TO THE NORTHWEST AT 25 TO 30 MPH IN THE AFTERNOON.

.MONDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN
THE LOWER 20S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.

.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S. SOUTHWEST WINDS AROUND 10 MPH.

$$

FORECASTER...WOLCOTT
REQUESTED BY...ANDY MCWILLIAMS
REASON FOR REQUEST...PRESCRIBED
.TAG 20120330.WASHA.01/RIW