FNUS75 KRIW 211553
FWSRIW

SPOT FORECAST FOR ANTHONY TIMBERS...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
853 AM MST MON DEC 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1030 MST ON DECEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK RIDGE OF HIGH PRESSURE WILL BUILD OVER THE WESTERN BIG
HORN MOUNTAINS THIS MORNING. SMOKE DISPERSION WILL START OUT FAIR
THIS MORNING AS NORTHWEST WIND AT MOUNTAIN TOP LEVEL REMAINS
MODERATE. AS THE CENTER OF THE HIGH PRESSURE RIDGE MOVES OVER THE
AREA THIS AFTERNOON...LIGHT WIND AND POOR SMOKE DISPERSION ARE
EXPECTED. BETTER SMOKE DISPERSAL IS EXPECTED ON TUESDAY AS A
PACIFIC STORM SYSTEM APPROACHES THE REGION FROM THE SOUTHWEST.

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

FORECASTER...CHURCH

.TODAY...
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SLIGHT CHANCE OF LIGHT SNOW
                    THIS MORNING...THEN MOSTLY SUNNY BY AFTERNOON.
MAX TEMPERATURE.....32-36.
MIN HUMIDITY........41-44 PERCENT.
20 FOOT WINDS.......NORTH-NORTHWEST 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 15-20 MPH
HAINES INDEX........3. OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH.
SMOKE DISPERSAL.....FAIR (40,000-45,000 KNOT-FT) THIS MORNING...
                    BECOMING POOR (LESS THAN 40,000 KNOT-FEET
                    AFTER 1300).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).
MIN TEMPERATURE.....20-23.
MAX HUMIDITY........64-67 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH BECOMING SOUTHEAST
                    3 TO 6 MPH EARLY IN THE MORNING.
RIDGE TOP WINDS.....WEST-NORTHWEST 5-10 MPH...BECOMING SOUTHEAST
                    5-10 MPH IN THE EARLY MORNING.
HAINES INDEX........3. OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST-NORTHWEST 5-10 MPH.
SMOKE DISPERSAL.....POOR.

.TUESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF LIGHT
                    SNOW IN THE AFTERNOON.
MAX TEMPERATURE.....28-31.
MIN HUMIDITY........49-53 PERCENT.
20 FOOT WINDS.......SOUTHEAST 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST 8-12 MPH.
HAINES INDEX.........3. OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 12 TO 15 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (40,800-68,000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...LIGHT SNOW LIKELY. LOWS AROUND 13. WINDS GENERALLY
LESS THAN 10 MPH.
.WEDNESDAY...COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS
AROUND 3. HIGHS AROUND 15. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND
5. HIGHS AROUND 13. WINDS GENERALLY LESS THAN 10 MPH.
.CHRISTMAS DAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS
AROUND 5. HIGHS AROUND 14. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...CHURCH
REQUESTED BY...GABE HARRY
REASON FOR REQUEST...PRESCRIBED
.TAG 20091221.ANTHO.01/RIW