FNUS75 KRIW 021026
FWSRIW

SPOT FORECAST FOR LOWER GROS VENTRE RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
426 AM MDT SAT OCT 2 2010

FORECAST IS BASED ON IGNITION TIME OF 1810 MDT ON OCTOBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
IT WILL CONTINUE WARM AND DRY OVER THE WEEKEND WITH COOL MORNINGS.
WINDS WILL GENERALLY BE DIURNALLY DRIVEN UNTIL SW WINDS BEGIN INCREASING
SUNDAY NIGHT INTO MONDAY. A STORM SYSTEM WILL BRING A CHANCE OF SHOWERS
TO THE FIRE AREA ON MONDAY ALONG WITH COOLER TEMPERATURES.


...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.....69-73 AT 9000 FEET AND 75-80 AT 7000 FEET.
MIN HUMIDITY........14-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 6-10 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH...SHIFTING TO THE WEST
                    AFTER 1600L.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL INCREASING TO 9500-10500 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST 6 TO 10
                    MPH AFTER 1000L.
SMOKE DISPERSAL.....POOR TO GOOD (20000-82600 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........44-48 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 1900L
                    THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH EARLY IN THE EVENING
                    BECOMING LIGHT AND VARIABLE.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5900-6900 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 6 TO 10 MPH IN THE EVENING BECOMING
                    LIGHT AND VARIABLE.
SMOKE DISPERSAL.....FAIR EARLY (49400 KNOT-FT) THEN POOR (1500 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (25-35 PERCENT).
MAX TEMPERATURE.....68-72 AT 9000 FEET AND 74-79 AT 7000 FEET.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 7-11 MPH. GUSTS UP TO 15 MPH
                    AFTER 1400L.
RIDGE TOP WINDS.....SOUTH AROUND 5 MPH UNTIL 1000L THEN BECOMING
                    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.......4400-5400 FT AGL INCREASING TO 8500-9000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST
                    AROUND 10-13 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR EARLY THEN GOOD (18000-90000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN THE
MID 40S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...COOLER. MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
60S. SOUTHWEST WINDS AROUND 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.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN
10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...J LADD
REASON FOR REQUEST...PRESCRIBED
.TAG 20101001.LOWER.01/RIW