FNUS75 KRIW 270034
FWSRIW

SPOT FORECAST FOR ROCK CREEK RIDGE...IA RWC
NATIONAL WEATHER SERVICE RIVERTON WY
634 PM MDT SAT SEP 26 2009

FORECAST IS BASED ON REQUEST TIME OF 1756 MDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WINDS IN THE SURROUNDING MORE OPEN TERRAIN HAVE BEEN
OBSERVED GUSTING UP TO 20 MPH OUT OF THE WEST NORTHWEST LATE THIS
AFTERNOON.  THE THREAT FOR THESE HIGHER GUSTS WILL DIMINISH WITH
SUNSET.  CLEAR SKIES AND LIGHT WEST NORTHWEST WIND WILL PREVAIL
OVERNIGHT.  A CLIPPER SYSTEM WILL DRIVE A COLD FRONT ACROSS CENTRAL
WYOMING SUNDAY MORNING RESULTING IN MAINLY SLIGHTLY COOLER
TEMPERATURES OVER THE FIRE. SIMILAR WIND SPEEDS OUT OF THE WEST
NORTHWEST WILL PREVAIL SUNDAY. A WIND SHIFT...DOWNSLOPE EASTERLY
WINDS...WILL OCCUR SUNDAY NIGHT.



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

FORECASTER...MEUNIER

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 43-47.
MAX HUMIDITY........44-48 PERCENT.
20 FOOT WINDS.......WEST 5 TO 10 MPH WITH POSSIBLE GUSTS TO 20 MPH THROUGH
                    SUNSET THEN WEST NORTHWEST 4 TO 8 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH DECREASING TO AROUND 15 MPH
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....WEST 18 TO 25 MPH DECREASING TO AROUND 15 MPH
                    AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR TO FAIR (14000-51500 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....NEAR 70.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......WEST NORTHWEST 4 TO 7 MPH BECOMING WEST NORTHWEST
                    AROUND 10 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH INCREASING TO WEST
                    AROUND 25 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1400 FT AGL INCREASING TO 5100 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 13 TO 14 MPH INCREASING TO WEST 23 TO
                    24 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (15600 KNOT-FT) INCREASING TO VERY GOOD
                    (103500 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...CLEAR. LOWS IN THE MID 30S. WEST NORTHWEST 4 TO 8 MPH
IN THE EVENING BECOMING EAST 5 TO 10 MPH AROUND MIDNIGHT.
.MONDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 70.
SOUTH WINDS AROUND 10 MPH.
.TUESDAY...PARTLY CLOUDY. SCATTERED SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS AROUND 12 MPH.
.WEDNESDAY...MUCH COLDER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS...
SNOW SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 20S.
HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S. WINDS GENERALLY
LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...IC
REASON FOR REQUEST...WILDFIRE
.TAG 20090926.ROCKC.03/RIW