FNUS75 KRIW 141409
FWSRIW

SPOT FORECAST FOR NORTH FORK...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
809 AM MDT TUE SEP 14 2010

FORECAST IS BASED ON REQUEST TIME OF 0726 MDT ON SEPTEMBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN APPROACHING DISTURBANCE WILL BRING ISOLATED SHOWERS
TO THE AREA THIS MORNING WITH ISOLATED AFTERNOON THUNDERSTORMS. SHOWERS
AND THUNDERSTORM COVERAGE WILL INCREASE THIS EVENING AS A DISTURBANCE
MOVES TOWARDS THE AREA. THE MAIN THREAT FROM THESE STORMS WILL BE
GUSTY WINDS OF 40 TO 50 MPH AND LIGHTNING. THE LOWER LEVELS SHOULD STILL
DRY OUT QUICKLY THIS MORNING WITH MIN RELATIVE HUMIDITY DROPPING
INTO THE TEENS THIS AFTERNOON AS GUSTY SOUTHWEST WINDS DEVELOP. A WEAK
COLD FRONT WILL TRY AND BACK INTO THE AREA FROM THE NORTHEAST AROUND
SUNRISE WEDNESDAY MORNING INCREASING THE RH'S AND SHIFTING THE WINDS TO
THE NORTHEAST.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED MORNING
                    SPRINKLES OR LIGHT SHOWERS...THEN ISOLATED AFTERNOON
                    SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....62-65.
MIN HUMIDITY........13-16 PERCENT.
20 FOOT WINDS.......DOWNSLOPE 3-6 MPH UNTIL 10 AM...THEN BECOMING SOUTHWEST
                    6 TO 12 MPH...INCREASING TO 10 TO 14 MPH WITH GUSTS TO
                    AROUND 25 MPH AFTER 1300L. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). CHANCE OF
                    THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
                    SHOWERS THROUGH THE NIGHT. ISOLATED
                    THUNDERSTORMS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 36-40.
MAX HUMIDITY........79-82 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH
                    DECREASING TO 4 TO 8 MPH AFTER MIDNIGHT.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................4 UNTIL 2400...THEN 2.
CHC OF WETTING RAIN.8 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
                    MOSTLY SUNNY (20-30 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS THROUGH THE DAY. ISOLATED
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........23-26 PERCENT.
20 FOOT WINDS.......NORTHEAST 3-7 MPH...BECOMING UPSLOPE/UPVALLEY
                    4 TO 9 MPH AFTER 1100L. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 6 TO 12 MPH BECOMING LIGHT AND VARIABLE
                    IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS AROUND 14 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S.
WEST WINDS AROUND 12 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...CODY DISPATCH
REASON FOR REQUEST...WILDFIRE
.TAG 20100914.NORTH.01/RIW