FNUS75 KRIW 301653
FWSRIW

SPOT FORECAST FOR NORTH FORK PILES...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
1053 AM MDT TUE MAR 30 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MARCH 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WINDY WEATHER WILL CONTINUE TODAY RESULTING FROM A TIGHT PRESSURE
GRADIENT. THE TREND WILL BE FOR GRADUALLY DIMINISHING WINDS TONIGHT THROUGH
WEDNESDAY. THIS STRONG WESTERLY FLOW WILL USHER IN SOME LIMITED PACIFIC MOISTURE
WHICH WILL RESULT IN MAINLY IN JUST LIGHT PRECIPITATION THROUGH WEDNESDAY
FROM WHATEVER MOISTURE IS LEFT OVER FROM THE TRACK EAST OVER THE CONTINENTAL
DIVIDE. A LOW PRESSURE CENTER IS PROGGED TO TRACK EAST ACROSS CENTRAL WYOMING
WEDNESDAY NIGHT AND THURSDAY WHICH WILL BRING AN INCREASING LIKELIHOOD
OF MORE SIGNIFICANT SNOWFALL WEDNESDAY NIGHT THROUGH THURSDAY.

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

FORECASTER...LIPSON

.TODAY...
SKY/WEATHER.........CLOUDY (95-100 PERCENT). PERIODS OF LIGHT RAIN.
MAX TEMPERATURE.....43-46.
MIN HUMIDITY........56-59 PERCENT.
WIND (20 FT)........WEST WINDS 16 TO 23 MPH. GUSTS UP TO 30
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH.
LAL.................1.
CWR.................10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 30 TO 33 MPH.
SMOKE DISPERSAL.....GOOD (76500-96100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLOUDY (95-100 PERCENT). LIGHT SNOW IN THE
                    EVENING...THEN SNOW LIKELY AFTER MIDNIGHT.
MIN TEMPERATURE.....25-28.
MAX HUMIDITY........76-79 PERCENT.
WIND (20 FT)........WEST WINDS 13 TO 18 MPH. GUSTS UP TO 25 MPH
                    INCREASING TO 35 MPH AFTER MIDNIGHT.
RIDGE TOP WINDS.....WEST SOUTHWEST 20 TO 30 MPH.
LAL.................1.
CWR.................10 PERCENT.
HAINES INDEX........3.
MIXING HEIGHT.......900 FEET.
TRANSPORT WINDS.....WEST 40 MPH.
SMOKE DISPERSAL.....FAIR.

.WEDNESDAY...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). CHANCE OF SNOW THROUGH
                    THE DAY. CHANCE OF RAIN IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 40.
MIN HUMIDITY........31-34 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 14 MPH WITH GUSTS TO
                    AROUND 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CWR.................15 PERCENT.
HAINES INDEX........3.
MIXING HEIGHT.......6500 FEET.
TRANSPORT WINDS.....WEST SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....VERY GOOD.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...CLOUDY WITH CHANCE OF SNOW. LOWS IN THE LOWER
20S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...SNOW LIKELY. LOWS IN THE LOWER 20S. HIGHS IN THE MID
30S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE LOWER 20S. HIGHS IN THE LOWER 30S. WEST WINDS AROUND
12 MPH.
.SATURDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE
MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 13 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...CLINT DAWSON
REASON FOR REQUEST...PRESCRIBED
.TAG 20100330.NORTH.01/RIW