FNUS75 KRIW 261242
FWSRIW

SPOT FORECAST FOR CHICKEN CREEK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
642 AM MDT SAT SEP 26 2009

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

BREEZY...UNSEASONABLY WARM AND DRY CONDITIONS ARE EXPECTED OVER THE
FIRE SITE TODAY. WEST NORTHWEST TO NORTHWEST WINDS WILL BE ON THE
INCREASE TODAY...ESPECIALLY DURING THE AFTERNOON. MINIMUM RELATIVE
HUMIDITY IS EXPECTED TO BE ONCE AGAIN BELOW 15 PERCENT TODAY AND
ON SUNDAY. SLIGHTLY COOLER TEMPERATURES AND A TAD WEAKER WINDS ARE
EXPECTED ON SUNDAY.

A MAJOR STORM SYSTEM IS EXPECTED TO AFFECT THE AREA TUESDAY
THROUGH WEDNESDAY NIGHT. STRONG SOUTHWEST WINDS ARE EXPECTED ON
TUESDAY WITH A DECENT CHANCE FOR WETTING PRECIPITATION TUESDAY
NIGHT AND WEDNESDAY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........9-14 PERCENT.
20 FOOT WINDS.......UPSLOPE 4-8 MPH BECOMING NORTHWEST 14
                    TO 20 MPH BETWEEN 1200 AND 1400. GUSTS
                    AROUND 35 MPH POSSIBLE IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH INCREASING TO WEST
                    NORTHWEST 20 TO 25 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700 FT AGL INCREASING TO 6400 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....WEST 13 TO 18 MPH SHIFTING TO THE NORTHWEST
                    AROUND 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (31100 KNOT-FT) INCREASING TO VERY GOOD
                    (135400 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........35-40 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH...DECREASING TO
                    4-8 MPH BY MIDNIGHT. GUSTS UP TO 30 MPH IN THE
                    EVENING.
RIDGE TOP WINDS.....NORTHWEST 15 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3900 FT AGL DECREASING TO 1400 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 15 TO 25 MPH.
SMOKE DISPERSAL.....GOOD (82400 KNOT-FT) DECREASING TO POOR (23000
                    KNOT-FT) AFTER MIDNIGHT.

.SUNDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....63-67.
MIN HUMIDITY........10-13 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST 10
                    TO 15 MPH WITH GUSTS TO AROUND 25 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 10 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 5600 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 TO 25 MPH.
SMOKE DISPERSAL.....POOR (29200 KNOT-FT) INCREASING TO VERY GOOD
                    (103600 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...CLEAR. LOWS IN THE MID 30S. WINDS GENERALLY LESS
THAN 10 MPH.
.MONDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 10 TO 20 MPH.
.WEDNESDAY...COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW
SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 20S. HIGHS IN
THE UPPER 40S. WEST WINDS AROUND 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...KABER
REASON FOR REQUEST...PRESCRIBED
.TAG 20090926.CHICK.01/RIW