FNUS75 KRIW 152141
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
341 PM MDT THU SEP 15 2011

FORECAST IS BASED ON REQUEST TIME OF 1513 MDT ON SEPTEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

CUMULUS WILL PERSIST THROUGH EARLY EVENING BEFORE DISSIPATING.
THERE IS AN OUTSIDE CHANCE OF A SHOWER OR THUNDERSTORM EARLY.
LIGHTNING AND GUSTY OUTFLOWS WILL BE THE PRIMARY HAZARDS. A
TROUGH WILL MOVE THROUGH FRIDAY BRINGING SCATTERED TO NUMEROUS
SHOWERS AND ISOLATED THUNDERSTORMS FROM THE LATE MORNING THROUGH
THE AFTERNOON. SOUTHWEST TO WEST WILL BE ON THE INCREASE AS WELL. ANOTHER
ROUND OF SHOWERS AND STORMS IS EXPECTED ON SATURDAY.

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

FORECASTER...T.BAKER

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). AN ISOLATED SHOWER
                    OR THUNDERSTORM POSSIBLE EARLY.  THEN CLEARING.
MIN TEMPERATURE.....35-38.
MAX HUMIDITY........83-86 PERCENT.
20 FOOT WINDS.......NORTHWEST 5 TO 10 GUSTS TO 20 MPH IN THE EVENING.
                    THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 6 TO 12 MPH WITH SOME HIGHER GUSTS
                    THROUGH 2200.  THEN SHIFTING SOUTHWEST 5 TO 10
                    MPH...INCREASING TO 8 TO 12 MPH GUSTS TO 20 MPH
                    LATE.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6000 FT AGL DECREASING TO 1000 FT AGL AFTER 2100.
TRANSPORT WINDS.....NORTHWEST 15 MPH THIS EVENING...THEN SOUTHWEST
                    AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD (75000 KNOT-FT)...THEN POOR (10000 KNOT-FT).

.FRIDAY...
SKY/WEATHER.........INCREASING CLOUDS (75-85 PERCENT). ISOLATED RAIN
                    SHOWERS IN THE MORNING...THEN NUMEROUS RAIN
                    SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........50-55 PERCENT.
20 FOOT WINDS.......VARIABLE 3-6 MPH...BECOMING SOUTH TO SOUTHWEST
                    10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH GUSTS TO 30 MPH..
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.60 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
SMOKE DISPERSAL.....VERY GOOD (125000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN SCATTERED SHOWERS AND SNOW
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. SOUTHWEST TO WEST WINDS
10-15 MPH IN THE EVENING.
.SATURDAY...PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE MID 50S. SOUTHWEST TO WEST
WINDS 10-20 MPH.
.SUNDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. SOUTHWEST TO WEST WINDS 10-20 MPH.
.MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS AROUND 60.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...T.BAKER
REQUESTED BY...RED ROCK FEMO
REASON FOR REQUEST...WILDFIRE
.TAG 20110915.REDRO.01/RIW