FNUS75 KRIW 131752
FWSRIW

SPOT FORECAST FOR FONTENELLE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
1152 AM MDT MON AUG 13 2012

FORECAST IS BASED ON REQUEST TIME OF 1049 MDT ON AUGUST 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
GENERALLY DRY WEST-NORTHWEST FLOW WILL PREVAIL ACROSS THE FIRE SITE
TODAY. A BATCH OF MOISTURE OVER SOUTHERN IDAHO MAY CLIP THE REGION
LATE THIS AFTERNOON AND EVENING AND PROVIDE ENOUGH ENERGY TO PRODUCE
AN ISOLATED SHOWER OR THUNDERSTORM. ANY SHOWERS OR STORMS THAT FORM
WILL BE QUICK TO DISSIPATE WITH THE SETTING SUN. WARM AND DRY
CONDITIONS ARE EXPECTED THROUGH TUESDAY BEFORE SLIGHTLY COOLER AIR
SETTLES IN FROM THE NORTH ON WEDNESDAY. EXPECT GUSTY AFTERNOON
WEST-NORTHWEST WIND OF 15 TO 25 MPH TODAY THROUGH WEDNESDAY.

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

FORECASTER...JONES

.THIS AFTERNOON...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) WITH ISOLATED
                    SHOWERS AND THUNDERSTORMS POSSIBLE AFTER 1500L.
MAX TEMPERATURE.....76-79 AT 8200 FT.
                    70-73 AT 9700 FT
MIN HUMIDITY........12-15 PERCENT AT 8200 FT.
                    14-17 PERCENT AT 9700 FT.
20 FOOT WINDS.......BECOMING WEST-NORTHWEST 11 TO 14 MPH WITH GUSTS
                    AROUND 25 MPH BY 1400L. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST-NORTHWEST 15 TO 20 MPH WITH GUSTS AROUND
                    25 MPH.
LAL.................1 UNTIL 1500L...THEN LAL 2.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......GRADUALLY INCREASING TO AROUND 9000 FT AGL
                    BY 1400L.
TRANSPORT WINDS.....WEST-NORTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....BECOMING EXCELLENT BY 1400L.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (30 PERCENT) WITH ISOLATED
                    SHOWERS UNTIL 1900L...THEN MOSTLY CLEAR
                    BY 2100L.
MIN TEMPERATURE.....36-39 AT 8200 FT.
                    42-45 AT 9700 FT.
MAX HUMIDITY........72-75 PERCENT AT 8200 FT.
                    60-63 PERCENT AT 9700 FT.
20 FOOT WINDS.......WEST-NORTHWEST WIND 8 TO 12 MPH WITH GUSTS TO
                    AROUND 25 MPH UNTIL 1930L...THEN BECOMING
                    DOWNSLOPE/DOWNVALLEY 4 TO 7 MPH BY 2200L.
RIDGE TOP WINDS.....WEST-NORTHWEST 15 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.......8000 FT AGL UNTIL 1900L...THEN DECREASING TO
                    LESS THAN 2000 FT AGL BY 2200L.
TRANSPORT WINDS.....WEST-NORTHWEST 15 TO 20 MPH UNTIL 2000L...
                    THEN BECOMING DOWNSLOPE/DOWNVALLEY 6 TO 9 MPH
                    BY 2200L.
SMOKE DISPERSAL.....EXCELLENT UNTIL 1900L...THEN BECOMING POOR
                    BY 2200L.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....80-83 AT 8200 FT.
                    74-77 AT 9700 FT.
MIN HUMIDITY........12-15 PERCENT AT 8200 FT.
                    13-16 PERCENT AT 9700 FT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH UNTIL 1000L...
                    THEN BECOMING WEST-NORTHWEST 12 TO 15 MPH WITH
                    GUSTS AROUND 25 MPH BY 1300L.
RIDGE TOP WINDS.....WEST-NORTHWEST 15 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.......LESS THAN 2000 FT AGL UNTIL 0900L...THEN
                    GRADUALLY INCREASING TO AROUND 9000 FT AGL
                    BY 1400L.
TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 5 TO 8 MPH UNTIL 0900L...
                    THEN BECOMING WEST-NORTHWEST AROUND 20 MPH
                    BY 1300L.
SMOKE DISPERSAL.....POOR UNTIL 1000L...THEN BECOMING EXCELLENT
                    BY 1400L.

.FORECAST DAYS 3 THROUGH 5...

.TUESDAY NIGHT...PARTLY CLOUDY WITH ISOLATED EVENING SHOWERS.
LOWS 40 TO 45. WEST WINDS AROUND 10 MPH.

.WEDNESDAY...PARTLY CLOUDY WITH ISOLATED LATE AFTERNOON SHOWERS
AND THUNDERSTORMS. LOWS 40 TO 45. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

.THURSDAY...MOSTLY CLEAR AND COOLER. LOWS 35 TO 40. HIGHS
AROUND 70. WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...JONES
REQUESTED BY...USFS
REASON FOR REQUEST...WILDFIRE
.TAG 20120813.FONTE.01/RIW