FNUS75 KRIW 261207
FWSRIW

SPOT FORECAST FOR NORTH FORK II UNIT R10...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
607 AM MDT FRI MAR 26 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MARCH 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UNSTABLE AIRMASS WITH AN EMBEDDED WEAK DISTURBANCE WILL
BRING SCATTERED SNOW SHOWERS TO THE AREA THROUGH THIS EVENING ALONG WITH
ISOLATED AFTERNOON THUNDERSTORMS. WINDS WILL LIKELY BE GUSTY AND ERRATIC
AGAIN TODAY...EVEN MORESO AROUND ANY CONVECTIVE SHOWERS. SATURDAY WILL
BE A DRY DAY WITH WARMING TEMPERATURES AND LOWERING MIN RH'S.

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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SCATTERED SNOW SHOWERS
                    WITH ISOLATED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....42-45.
MIN HUMIDITY........25-29 PERCENT.
WIND (20 FT)........WEST TO SOUTHWEST WINDS 8 TO 14 MPH WITH GUSTS TO
                    AROUND 25 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 25 TO 30 MPH...BECOMING NORTHWEST LATE.
LAL.................1 UNTIL 1200...THEN 2.
CWR.................10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 5000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST 22 TO 25 MPH.
SMOKE DISPERSAL.....FAIR BECOMING VERY GOOD BY MID AFTERNOON
                    (44400-125000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLOUDY (75-85 PERCENT). SCATTERED SNOW SHOWERS
                    IN THE EVENING...THEN BECOMING MOSTLY CLEAR (15-25
                    PERCENT) AFTER MIDNIGHT.
MIN TEMPERATURE.....21-24.
MAX HUMIDITY........73-79 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 14 MPH. GUSTS UP TO 25 MPH
                    UNTIL MIDNIGHT...THEN DECREASING AND BECOMING
                    DOWNSLOPE/DOWNVALLEY 6-10 MPH.
RIDGE TOP WINDS.....NORTHWEST 20 TO 25 MPH.
LAL.................1.
CWR.................6 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000 EARLY THEN DECREASING TO 800 FT AGL.
TRANSPORT WINDS.....NORTHWEST 16 TO 20 MPH.
SMOKE DISPERSAL.....FAIR EARLY THEN DECREASING TO POOR (16000-48000 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-25 PERCENT).
MAX TEMPERATURE.....AROUND 47 TO 50.
MIN HUMIDITY........20-23 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000-4500 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 16 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (44000-68000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 20S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 50S. WEST WINDS AROUND 13 MPH.
.MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. SOUTHWEST
WINDS AROUND 13 MPH.
.TUESDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS AROUND 30. HIGHS IN THE LOWER 50S. SOUTHWEST WINDS AROUND
15 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...CLINT DAWSON
REASON FOR REQUEST...PRESCRIBED
.TAG 20100326.NORTH.01/RIW