FNUS75 KRIW 161715
FWSRIW

SPOT FORECAST FOR FONTENELLE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
1115 AM MDT THU AUG 16 2012

FORECAST IS BASED ON REQUEST TIME OF 1043 MDT ON AUGUST 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
BREEZY WEST TO NORTHWEST WIND CAN BE EXPECTED THIS AFTERNOON AND
EARLY EVENING. THE WIND SHOULD SUBSIDE BY LATE EVENING WITH A
CLEAR SKY ABOVE. OTHERWISE...HIGH PRESSURE BEGINS TO BUILD
IN FRIDAY WITH DRY CONDITIONS AND LOWERING RELATIVE HUMIDITY
INTO THE WEEKEND.


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

FORECASTER...LYNOTT

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....69-75.
MIN HUMIDITY........15-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 10 TO 12
                    MPH WITH GUSTS TO AROUND 25 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....WEST 10 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL INCREASING TO 7900-8900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 16 MPH INCREASING TO AROUND 20 MPH
                    LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (34800 KNOT-FT) INCREASING TO VERY GOOD
                    (132300 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....40-46.
MAX HUMIDITY........65-73 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 8 TO 15 MPH WITH GUSTS TO
                    AROUND 25 MPH IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 25 MPH SHIFTING TO THE WEST
                    AROUND 10 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......8300-9300 FT AGL DECREASING TO 3100-4100 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 13 TO 22 MPH.
SMOKE DISPERSAL.....VERY GOOD (142000 KNOT-FT) DECREASING TO FAIR
                    (44500 KNOT-FT) AFTER MIDNIGHT.

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....70-76.
MIN HUMIDITY........15-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST 10
                    TO 12 MPH LATE IN THE AFTERNOON. GUSTS UP TO 20
                    MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2900-3900 FT AGL INCREASING TO 8800-9800 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 14 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (41800 KNOT-FT) INCREASING TO VERY GOOD
                    (137700 KNOT-FT) IN THE AFTERNOON.

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

$$

FORECASTER...LYNOTT
REQUESTED BY...USFS
REASON FOR REQUEST...WILDFIRE
.TAG 20120816.FONTE.01/RIW