FNUS75 KRIW 251432
FWSRIW

SPOT FORECAST FOR SLEEPING GIANT PILES...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
832 AM MDT MON OCT 25 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT TODAY...

.DISCUSSION...
BREEZY TO WINDY CONDITIONS CAN BE EXPECTED TODAY IN THE WAKE OF
LAST EVENINGS COLD FRONT PASSAGE. SNOW SHOWERS CAN BE EXPECTED
TODAY AND WILL DECREASE IN INTENSITY AND COVERAGE THROUGH THE DAY
TUESDAY. MOIST NORTHWEST FLOW WILL BRING COOL AND BREEZY CONDITIONS
THROUGH WEDNESDAY. THE COOL AIR AND RECENT PRECIPITATION WILL KEEP
DAYTIME HUMIDITY HIGH THROUGH WEDNESDAY. A RIDGE OF HIGH PRESSURE
WILL BUILD IN FOR THURSDAY. SLIGHTLY WARMER AND DRY CONDITIONS
CAN BE EXPECTED FOR THURSDAY AND FRIDAY WITH LIGHTER WINDS...BUT
ATMOSPHERIC MOISTURE WILL INCREASE FRIDAY AHEAD OF THE NEXT
APPROACHING STORM SYSTEM.


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

FORECASTER...BERC

.TODAY...
SKY/WEATHER.........CLOUDY (95-100 PERCENT). NUMEROUS SNOW
                    SHOWERS THROUGH THE AFTERNOON. 1-2 INCHES ADDITIONAL
                    ACCUMULATION
MAX TEMPERATURE.....33-36.
MIN HUMIDITY........55-58 PERCENT.
20 FOOT WINDS.......WEST WINDS 16 TO 22 MPH. GUSTS UP TO 30 MPH
                    INCREASING TO 40 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 25 TO 30 MPH INCREASING TO
                    AROUND 35 MPH IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....WEST 28 TO 36 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (93800-108400 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLOUDY (90-100 PERCENT). NUMEROUS SNOW SHOWERS
                    IN THE EVENING...THEN SCATTERED SNOW SHOWERS
                    AFTER MIDNIGHT.
MIN TEMPERATURE.....20-23.
MAX HUMIDITY........81-84 PERCENT.
20 FOOT WINDS.......WEST WINDS 18 TO 21 MPH. GUSTS UP TO 40 MPH
                    DECREASING TO 35 MPH AFTER MIDNIGHT.
RIDGE TOP WINDS.....WEST 30 TO 35 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....WEST 31 TO 35 MPH.
SMOKE DISPERSAL.....VERY GOOD (103300-108600 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SCATTERED SNOW SHOWERS.
MAX TEMPERATURE.....30-33.
MIN HUMIDITY........58-61 PERCENT.
20 FOOT WINDS.......WEST WINDS 17 TO 20 MPH. GUSTS UP TO 35 MPH
                    INCREASING TO 40 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 30 TO 35 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700-4700 FT AGL.
TRANSPORT WINDS.....WEST 32 TO 35 MPH.
SMOKE DISPERSAL.....VERY GOOD (112500-128400 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLOUDY WITH SCATTERED SNOW SHOWERS. LOWS
AROUND 16. WEST WINDS AROUND 16 MPH.
.WEDNESDAY...PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND
16. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 12 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS
IN THE LOWER 30S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...CLINT DAWSON
REASON FOR REQUEST...PRESCRIBED
.TAG 20101025.SLEEP.01/RIW