FNUS75 KRIW 131702
FWSRIW

SPOT FORECAST FOR NORTH FORK PILES...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
1102 AM MDT TUE APR 13 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

.DISCUSSION...
A STORM SYSTEM WILL CONTINUE TO MOVE THROUGH TODAY AND TONIGHT
BRINGING LOW CLOUDS...LIGHT SNOW/POSSIBLE THUNDERSTORMS AND
INCREASING WIND. AN INCREASING WESTERLY FLOW ALOFT LATE TONIGHT
AND WEDNESDAY WILL BRING VERY WINDY CONDITIONS TO THE NORTH FORK
CANYON.

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

FORECASTER...T.BAKER

.TODAY...
SKY/WEATHER.........CLOUDY (95-100 PERCENT). SCATTERED TO NUMEROUS
                    SNOW SHOWERS AND ISOLATED THUNDERSTORMS.
MAX TEMPERATURE.....NEAR 35.
MIN HUMIDITY........65-70 PERCENT.
WIND (20 FT)........LIGHT WIND INCREASING AND BECOMING WEST 15 TO
                    25 MPH WITH GUSTS TO AROUND 30 MPH IN THE EARLY
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
LAL.................2.
CWR.................70 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH THIS MORNING...THEN INCREASING AND
                    BECOMING WEST 30 MPH IN THE EARLY AFTERNOON.
SMOKE DISPERSAL.....POOR (30000 KNOT-FT) INCREASING TO GOOD (90000 KNOT-
                    FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). SCATTERED SNOW SHOWERS
                    IN THE EVENING...THEN SLIGHT CHANCE OF SNOW
                    SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....26-29.
MAX HUMIDITY........74-77 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 25 MPH. GUSTS UP TO 35 MPH.
LAL.................1.
CWR.................16 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....WEST 30 MPH.
SMOKE DISPERSAL.....GOOD (60000 KNOT-FT).

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....49-52.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL...INCREASING TO 3500 FT AGL AROUND NOON.
TRANSPORT WINDS.....WEST 40 MPH.
SMOKE DISPERSAL.....GOOD (80000 KNOT-FT) BECOMING VERY GOOD (140000 KNOT-FT)
                    AROUND NOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER
50S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS...
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS AROUND 60. WINDS GENERALLY
LESS THAN 10 MPH.

$$

FORECASTER...T.BAKER
REQUESTED BY...TODD LEGLER
REASON FOR REQUEST...PRESCRIBED
.TAG 20100413.NORTH.01/RIW