FNUS75 KRIW 011106
FWSRIW

SPOT FORECAST FOR LOWER GROS VENTRE RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
506 AM MDT FRI OCT 1 2010

FORECAST IS BASED ON IGNITION TIME OF 1825 MDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN UPPER RIDGE OF HIGH PRESSURE WILL REMAIN ANCHORED TO THE WEST
THROUGH SATURDAY. THE RESULT WILL ONLY BE A FEW PASSING CLOUDS...
COOL MORNINGS WITH WARM AFTERNOON TEMPERATURES AND GENERALLY
DIURNALLY DRIVEN WINDS. THE NEXT CHANCE FOR PRECIPITATION WILL
NOT OCCUR UNTIL MONDAY.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....67-70 ABOVE 9000 FEET AND 74-78 AT 7000 FEET.
MIN HUMIDITY........12-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 13 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800-2800 FT AGL INCREASING TO 6000-6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (15000 KNOT-FT) BECOMING FAIR IN THE AFTERNOON
                    (50000-60000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........58-65 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST 5-10 MPH SHIFTING TO THE SOUTHEAST IN
                    THE LATE EVENING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5300-6300 FT AGL DECREASING TO 600-1200 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 6 MPH SHIFTING TO THE SOUTHEAST
                    AROUND DARK.
SMOKE DISPERSAL.....POOR (10000-36600 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....67-70 AT 9000 FEET AND 74-78 AT 9000 FEET.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTHEAST 5-10 MPH SHIFTING TO THE WEST
                    AFTER 1000L.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2400-3400 FT AGL INCREASING TO 8500-9000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 7 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....POOR (21000 KNOT-FT) INCREASING TO GOOD (63000
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN
10 MPH.
.MONDAY...COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...BURN BOSS
REASON FOR REQUEST...PRESCRIBED
.TAG 20100930.LOWER.01/RIW