FNUS75 KRIW 271219
FWSRIW

SPOT FORECAST FOR NORTH FORK...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
619 AM MDT FRI AUG 27 2010

FORECAST IS BASED ON REQUEST TIME OF 2044 MDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A COLD FRONT ALONG WITH ISOLATED SHOWERS WERE
APPROACHING THE FIRE ACROSS WESTERN WYOMING EARLY THIS MORNING
THE MAIN BAND OF MOISTURE RIDING UP ALONG THE FRONT WILL MOVE INTO THE
AREA AROUND NOON.  THIS FRONT IS EXPECTED TO DECELERATE AND STALL
NEAR THE DIVIDE THIS AFTERNOON WITH MOISTURE CONTINUING TO SURGE UP
FROM THE GREAT BASIN.  SCATTERED THUNDERSTORMS ARE EXPECTED UNDER
THIS PLUME THIS AFTERNOON AND EARLY EVENING WITH SOME SHOWERS LINGERING
OVERNIGHT.  AN UNSTABLE SOUTHWEST FLOW WILL CONTINUE OVER THE WEEKEND WITH
A STRONGER COLD FRONTAL PASSAGE AND SHARPLY COOLER TEMPERATURES EXPECTED
SUNDAY NIGHT AND MONDAY.

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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) WITH ISOLATED SHOWERS
                    THIS MORNING WITH A THUNDERSTORM POSSIBLE AFTER 1000.
                    BECOMING MOSTLY CLOUDY (75-85 PERCENT) WITH
                    SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........RELATIVE HUMIDITY WILL HOLD STEADY
                    AROUND 30 PERCENT THIS MORNING WITH RH/S
                    IN THE 30-40 PERCENT IN THE AFTERNOON.
20 FOOT WINDS.......WEST SOUTHWEST 12 TO 18 MPH WITH GUSTS 30 TO 35 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST SOUTHWEST 20 TO 25 MPH.
LAL.................2 UNTIL 1200...THEN 3.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000-3000 FT AGL INCREASING TO 4800 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....WEST 24 TO 33 MPH.
SMOKE DISPERSAL.....FAIR (57400 KNOT-FT) INCREASING TO VERY GOOD
                    (108800 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). SCATTERED
                    THUNDERSTORMS UNTIL 2000L. WIDELY SCATTERED SHOWERS
                    AND ISOLATED THUNDERSTORMS OVERNIGHT.
MIN TEMPERATURE.....50-53.
MAX HUMIDITY........65-70 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 12 TO 18 MPH WITH GUSTS 25 TO 30 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.
LAL.................3.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2400-3400 FT AGL DECREASING TO NEAR 1000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 23 TO 26 MPH.
SMOKE DISPERSAL.....GOOD (63700 KNOT-FT) DECREASING TO POOR (13200
                    KNOT-FT) AFTER MIDNIGHT.

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). WIDELY SCATTERED
                    SHOWERS AND ISOLATED THUNDERSTORMS IN THE MORNING.
                    SCATTERED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....63-66.
MIN HUMIDITY........35-38 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS 30 TO 35 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30
                    MPH IN THE LATE MORNING AND AFTERNOON.
LAL.................3 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.25 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2900-3900 FT AGL INCREASING TO 6900-7900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH INCREASING TO NEAR 30
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (84100 KNOT-FT) INCREASING TO EXCELLENT
                    (198400 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
SOUTHWEST WINDS AROUND 22 MPH.
.SUNDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. SOUTHWEST WINDS
AROUND 16 MPH.
.MONDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS WITH POSSIBLE SNOW
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WEST WINDS AROUND 12 MPH.
.TUESDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WEST WINDS AROUND 12 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...CODY DISPATCH
REASON FOR REQUEST...WILDFIRE
.TAG 20100826.NORTH.02/RIW