FNUS75 KRIW 110932
FWSRIW

SPOT FORECAST FOR FONTENELLE...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
332 AM MDT SAT AUG 11 2012

FORECAST IS BASED ON REQUEST TIME OF 2245 MDT ON AUGUST 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...NEAR RED FLAG CONDITIONS THIS AFTERNOON AND EARLY EVENING...

OVERNIGHT...THE WILDFIRE AREA RECEIVED BETWEEN A TRACE AND A TENTH
OF AN INCH OF RAIN.

A COLD FRONT IS EXPECTED TO MOVE ACROSS THE WILDFIRE AREA BETWEEN
NOON AND 2 PM THIS AFTERNOON. AHEAD OF THIS FRONT...ISOLATED
SHOWERS AND EVEN A THUNDERSTORM WILL BE POSSIBLE THROUGH ABOUT
NOON. IN WAKE OF THE FRONT...EXPECT BREEZY WEST TO NORTHWEST WINDS
AND MUCH DRIER AIR. THE BREEZY CONDITIONS WILL CONTINUE THROUGH
THE EVENING...BUT WILL WEAKEN BETWEEN 9 PM AND MIDNIGHT. THE
BREEZY CONDITIONS AND LOW RELATIVE HUMIDITY WILL RESULT IN
ELEVATED FIRE WEATHER CONDITIONS THIS AFTERNOON AND EARLY EVENING.

VERY DRY AND WARM CONDITIONS WILL OCCUR SUNDAY...BUT WINDS WILL
BE MAINLY LIGHT AND TERRAIN DRIVEN.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (40 PERCENT)...WITH ISOLATED SHOWERS
                    AND POSSIBLY A THUNDERSTORM IN THE MORNING. MOSTLY
                    SUNNY (10 PERCENT) IN THE AFTERNOON.
MAX TEMPERATURE.....75.
MIN HUMIDITY........15 PERCENT.
20 FOOT WINDS.......VARIABLE 3-6 MPH GUST TO 15 MPH IN THE MORNING...
                    BECOMING WEST TO NORTHWEST 15-20 MPH BETWEEN
                    NOON AND 2 PM IN WAKE OF A COLD FRONT. GUSTS
                    TO AROUND 30 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 10-15 MPH SHIFTING TO THE NORTHWEST
                    15-25 MPH IN THE AFTERNOON.
LAL.................2 UNTIL NOON...THEN 1.
CHC OF WETTING RAIN.ZERO.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH IN THE MORNING...BECOMING 5 OR
                    MODERATE POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH IN THE AFTERNOON.
MIXING HEIGHT.......7900 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10-15 MPH INCREASING TO NORTHWEST 20-30
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....EXCELLENT IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (0 PERCENT).
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........25-30 PERCENT MUCH OF THE WILDFIRE AREA...EXCEPT
                    NEAR 70 PERCENT IN VALLEYS SUCH AS SNIDER BASIN.
20 FOOT WINDS.......NORTHWEST 15-20 MPH...DECREASING TO 5-10MPH BY
                    9 PM...THEN LIGHT AND VARIABLE AFTER MIDNIGHT.
RIDGE TOP WINDS.....NORTHWEST 15-20 MPH DECREASING TO AROUND 10
                    MPH BY 9 PM...THEN LIGHT AND VARIABLE AFTER
                    MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1500 FT AGL BY MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH DECREASING TO AROUND 10
                    MPH BY 9 PM...THEN LIGHT AND VARIABLE AFTER
                    MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD IN THE EVENING DECREASING TO POOR
                    BETWEEN 9 PM AND MIDNIGHT.

.SUNDAY...
SKY/WEATHER.........SUNNY (10 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........12 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH. GUSTS TO 15 MPH IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....LIGHT AND VARIABLE...BECOMING WEST 5-10 MPH
                    BY EARLY AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......10000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....LIGHT AND VARIABLE...BECOMING WEST AROUND 10
                    MPH BY EARLY AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.MONDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S. WINDS GENERALLY
LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEST WINDS 10 TO 20 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...MURRELL
REQUESTED BY...WAYNE PETSCH
REASON FOR REQUEST...WILDFIRE
.TAG 20120810.FONTE.01/RIW