FNUS75 KRIW 291017
FWSRIW

SPOT FORECAST FOR FONTENELLE...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
417 AM MDT SUN JUL 29 2012

FORECAST IS BASED ON REQUEST TIME OF 1802 MDT ON JULY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL DISTURBANCE WILL LIFT NORTH ACROSS
EASTERN UTAH TODAY AND ROTATE ACROSS SOUTHERN WYOMING THIS
EVENING. A FEW WEAK SHOWERS AND ISOLATED THUNDERSTORMS OVER
NORTHERN UTAH WILL MOVE INTO SOUTHWEST WYOMING THIS MORNING. MOST
AFTERNOON THUNDERSTORMS WITH THIS SYSTEM ARE EXPECTED TO REMAIN
ALONG AND SOUTH OF INTERSTATE 80 WITH A STRAY THUNDERSTORM OR TWO
POSSIBLE FURTHER NORTH NEAR THE FIRE. TEMPERATURES WILL TREND
SLIGHTLY WARMER AND RELATIVE HUMIDITY SLIGHTLY DRIER TODAY. MONDAY
WILL BE SIMILAR FOR THUNDERSTORM
COVERAGE...TEMPERATURES...RELATIVE HUMIDITY AND WIND.

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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT)...BECOMING
                    MOSTLY CLOUDY (75-85 PERCENT) BY 1500. ISOLATED
                    SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....76-83.
MIN HUMIDITY........14-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH IN THE MORNING.
                    BECOMING WEST SOUTHWEST 5 TO 10 MPH WITH
                    GUSTS TO 20 MPH EARLY AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH.
LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6700-7700 FT AGL INCREASING TO 10800-11800 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL......GOOD (75300 KNOT-FT) INCREASING TO VERY GOOD
                    (133200 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) IN THE EVENING
                    THEN BECOMING PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....41-47.
MAX HUMIDITY........64-74 PERCENT.
20 FOOT WINDS.......WEST 5 TO 10 MPH WITH GUSTS 15 TO 20 MPH UNTIL AROUND
                    2000...THEN BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH SHIFTING TO THE NORTHEAST
                    EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......8500-9500 FT AGL DECREASING TO 3900-4900 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE NORTHEAST
                    EARLY IN THE MORNING.
SMOKE DISPERSAL.....VERY GOOD (108400 KNOT-FT) DECREASING TO FAIR
                    (40300 KNOT-FT) BETWEEN 2100 AND MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) IN THE MORNING...THEN
                    PARTLY CLOUDY (40-50 PERCENT) IN THE AFTERNOON. A SLIGHT
                    CHANCE FOR AN AFTERNOON THUNDERSTORM.
MAX TEMPERATURE.....75-82.
MIN HUMIDITY........14-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH...BECOMING SOUTHWEST
                    IN THE EARLY AFTERNOON WITH GUSTS 15 TO 20 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHEAST 5 TO 10 MPH SHIFTING TO THE SOUTHWEST IN
                    THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5400-6400 FT AGL INCREASING TO 10100-11100 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH SHIFTING TO THE SOUTHWEST 10
                    TO 15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (44300 KNOT-FT) INCREASING TO VERY GOOD
                    (100500 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

.THURSDAY...CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...TIDC
REASON FOR REQUEST...WILDFIRE
.TAG 20120728.FONTE.01/RIW