FNUS75 KRIW 241240
FWSRIW

SPOT FORECAST FOR CHICKEN CREEK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
640 AM MDT THU SEP 24 2009

FORECAST IS BASED ON IGNITION TIME OF 0630 MDT ON SEPTEMBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

DRY AND MILD CONDITIONS ARE EXPECTED OVER THE NEXT COUPLE OF DAYS. A
WEAK DISTURBANCE IS EXPECTED TO MOVE OVER THE AREA LATE
FRIDAY...BUT ONLY SOME CLOUDS ARE EXPECTED WITH THIS FEATURE.
WINDS ARE EXPECTED TO BE LIGHT AND BE TERRAIN DRIVEN TODAY AND
FRIDAY. TRANSPORT WINDS WILL ALSO BE WEAK...WITH SMOKE DISPERSAL
EXPECTED TO JUST REACH THE LOW END OF THE GOOD CATEGORY THIS
AFTERNOON. SLIGHTLY STRONGER WINDS ARE EXPECTED ON FRIDAY. A MAJOR
STORM SYSTEM WILL BEGIN TO AFFECT THE AREA BEGINNING NEXT
TUESDAY...WITH MOST OF ITS IMPACT EXPECTED 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.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....62-66.
MIN HUMIDITY........23-28 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH. GUSTS TO 15 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1100 FT AGL INCREASING TO 6800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH...BECOMING NORTH NORTHEAST
                    5 TO 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (9400 KNOT-FT) INCREASING TO GOOD (61200
                    KNOT-FT) AROUND 1500 IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....25-30.
MAX HUMIDITY........AROUND 80 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700 FT AGL DECREASING TO 400 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (3500-14500 KNOT-FT).

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTH 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 8000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH...SHIFTING TO THE NORTHWEST
                    IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (9600 KNOT-FT) INCREASING TO GOOD (88100
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. WEST WINDS AROUND 11 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
60S. NORTHWEST WINDS AROUND 10 MPH.
.MONDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...KABER
REASON FOR REQUEST...PRESCRIBED
.TAG 20090924.CHICK.01/RIW