FNUS75 KRIW 051718
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
1118 AM MDT MON SEP 5 2011

FORECAST IS BASED ON REQUEST TIME OF 1050 MDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WARM AND VERY DRY CONDITIONS WILL CONTINUE AGAIN TODAY. WINDS ARE
EXPECTED TO BE RELATIVELY LIGHT AND TERRAIN DRIVEN MOST OF THE
DAY...BUT BECOME MORE NORTHWEST BY MID TO LATE AFTERNOON.
SOME MOISTURE WILL BEGIN TO SURGE NORTHWARD LATE TODAY AHEAD OF A
WEAK DISTURBANCE THAT WILL AFFECT THE REGION TONIGHT AND TUESDAY.
ISOLATED THUNDERSTORM ACTIVITY WILL BE POSSIBLE LATE THIS AFTERNOON
THIS ISOLATED TO WIDELY SCATTERED SHOWER AND THUNDERSTORM ACTIVITY IS
EXPECTED TO LAST TONIGHT AND THROUGH THE DAY ON TUESDAY.

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

FORECASTER...LIPSON

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT) THEN BECOMING PARTLY
                    CLOUDY (45-55 PERCENT). ISOLATED SHOWERS BY 1200.
                    ISOLATED THUNDERSTORMS BEGINNING AROUND 1500 THIS AFTERNOON.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........15 PERCENT.
20 FOOT WINDS.......NORTHWEST 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3200-4200 FT AGL INCREASING TO 10000-11000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 12 TO 13 MPH SHIFTING TO THE WEST 13 TO
                    18 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (16100 KNOT-FT) INCREASING TO VERY GOOD
                    (117300 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). ISOLATED RAIN
                    SHOWERS AND THUNDERSTORMS IN THE EVENING.
                    SCATTERED RAIN SHOWERS AFTER 0300.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........74-77 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 8 MPH WITH GUSTS TO AROUND 15
                    MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY FROM THE SOUTHWEST 4-7 MPH AFTER 2000.
                    SOUTH SOUTHWEST WINDS 7 TO 10 MPH AFTER MIDNIGHT.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
                    AFTER MIDNIGHT.
LAL.................2.
CHC OF WETTING RAIN.6 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......9700-10700 FT AGL DECREASING TO 4700-5700 FT
                    AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 15 TO 17 MPH SHIFTING TO THE SOUTHWEST 12
                    TO 14 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD (130100 KNOT-FT) DECREASING TO FAIR
                    (44800 KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT). SCATTERED RAIN
                    SHOWERS IN THE MORNING. ISOLATED SHOWERS AND THUNDERSTORMS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....62.
MIN HUMIDITY........28 PERCENT.
20 FOOT WINDS.......SOUTHEAST 5-9 MPH BECOMING NORTH
                    AROUND 10 MPH BY 1200 WITH HIGHER GUSTS TO AROUND 15 MPH
                    LATE IN THE AFTERNOON BY 2200.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH SHIFTING TO THE NORTHWEST 10
                    TO 15 MPH IN THE AFTERNOON.
LAL.................2.
CHC OF WETTING RAIN.6 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL INCREASING TO 5100-6100 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 10 TO 14 MPH SHIFTING TO THE NORTHWEST 15
                    TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (30300-43100 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...BRANDT
REASON FOR REQUEST...WILDFIRE
.TAG 20110905.REDRO.01/RIW