FNUS75 KRIW 151459
FWSRIW

SPOT FORECAST FOR WEST SLOPE BIG HORNS SLASH PILE BURNS...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
759 AM MST TUE DEC 15 2009

FORECAST IS BASED ON IGNITION TIME OF 0735 MST ON DECEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WESTERLY FLOW ALOFT WILL BEGIN TO USHER IN MORE CLOUD COVER BEGINNING
TONIGHT AND CONTINUING THROUGH WEDNESDAY. THE FIRE SITE WILL BE ABOVE
VALLEY INVERSIONS SO TEMPERATURES WILL LIKELY REACH THE 30S TODAY AND
WEDNESDAY. THESE WARMER TEMPERATURES WILL ALSO BE ACCOMPANIED BY
BREEZY CONDITIONS...ESPECIALLY IN THE AFTERNOON HOURS. IF ENOUGH
MOISTURE FILTERS IN ON WEDNESDAY AFTERNOON THERE COULD BE A FEW
ISOLATED SNOW SHOWERS ON THE WEST SLOPES OF THE BIGHORNS.

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

FORECASTER...JONES

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MAX TEMPERATURE.....29-32.
MIN HUMIDITY........31-34 PERCENT.
20 FOOT WINDS.......BECOMING SOUTHWEST 10 TO 15 MPH BY 1100.
                    OCCASIONAL GUSTS UP TO 22 MPH.
RIDGE TOP WINDS.....BECOMING SOUTHWEST AROUND 15 MPH WITH
                    OCCASIONAL GUSTS 25 TO 30 MPH.
HAINES INDEX........2.
MIXING HEIGHT.......RISING TO AROUND 4000 FT AGL BY 1500.
TRANSPORT WINDS.....WEST-SOUTHWEST 15 TO 25 MPH.
SMOKE DISPERSAL.....BECOMING GOOD BY 1400.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MIN TEMPERATURE.....AROUND 20.
MAX HUMIDITY........60-63 PERCENT.
20 FOOT WINDS.......BECOMING DOWNSLOPE/DOWNVALLEY 4 TO 8 MPH
                    BY 1800.
RIDGE TOP WINDS.....WEST-SOUTHWEST 10 TO 20 MPH.
HAINES INDEX........3.
MIXING HEIGHT.......DECREASING TO LESS THAN 1500 FT AGL BETWEEN
                    1700 AND 1900.
TRANSPORT WINDS.....BECOMING DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH
                    BY 1800.
SMOKE DISPERSAL.....BECOMING POOR BY 1800.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).
MAX TEMPERATURE.....36-39.
MIN HUMIDITY........31-34 PERCENT.
20 FOOT WINDS.......BECOMING WEST-NORTHWEST 10 TO 15 MPH BY 1200.
                    OCCASIONAL GUSTS AROUND 22 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 15 TO 25 MPH.
HAINES INDEX........3.
MIXING HEIGHT.......INCREASING TO 4000 FT AGL BY 1400.
TRANSPORT WINDS.....WEST 15 TO 25 MPH.
SMOKE DISPERSAL.....BECOMING GOOD BY 1400.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...MOSTLY CLOUDY WITH ISOLATED SNOW SHOWERS.
LOWS AROUND 18. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND 16.
HIGHS IN THE LOWER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS AROUND
16. HIGHS AROUND 30. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE LOWER
30S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...JONES
REQUESTED BY...GABE HARRY
REASON FOR REQUEST...PRESCRIBED
.TAG 20091215.WESTS.01/RIW