FNUS75 KRIW 040955
FWSRIW

SPOT FORECAST FOR FONTENELLE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
355 AM MDT SAT AUG 4 2012

FORECAST IS BASED ON REQUEST TIME OF 1940 MDT ON AUGUST 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
CLEAR AND DRY WITH A WARMING TREND OVER THE WEEKEND WITH GENERALLY
DIURNALLY DRIVEN WINDS. HOWEVER...THERE WILL BE SOME INCREASE IN
WEST WINDS SUNDAY AFTERNOON WITH LOWER RH'S.

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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........19-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH TO SOUTHWEST 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3200-4200 FT AGL INCREASING TO 7000-7500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 6-9 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (4500-56000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....40-46.
MAX HUMIDITY........52-62 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-8 MPH.
RIDGE TOP WINDS.....SOUTH TO SOUTHEAST AROUND 5-9 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4700-5700 FT AGL DECREASING TO 800 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH TO SOUTHEAST 5 TO 9 MPH.
SMOKE DISPERSAL.....POOR (6500-35000 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....72-78.
MIN HUMIDITY........13-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 11 TO 12
                    MPH WITH HIGHER GUSTS LATE IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH SHIFTING TO THE WEST
                    AROUND 15 MPH LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5200-6200 FT AGL INCREASING TO 8500-9000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 8 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON AT 12-15 MPH.
SMOKE DISPERSAL.....FAIR (45000 KNOT-FT) INCREASING TO VERY GOOD
                    (115000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
.MONDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS
THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...LANCASTER
REASON FOR REQUEST...WILDFIRE
.TAG 20120803.FONTE.01/RIW