FNUS75 KRIW 132152
FWSRIW

SPOT FORECAST FOR RED ROCK...BRIDGER-TETON NATIONAL FOREST
NATIONAL WEATHER SERVICE RIVERTON WY
352 PM MDT TUE SEP 13 2011

FORECAST IS BASED ON REQUEST TIME OF 1528 MDT ON SEPTEMBER 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

AN ACTIVE PATTERN CONTINUES TO BRING SHOWERS AND THUNDERSTORMS
TO THE AREA...THIS PATTERN WILL CONTINUE INTO NEXT WEEK. A COLD
FRONT WILL CONTINUE TO MOVE SOUTH THROUGH THE EVENING...DROPPING
TEMPERATURES AND SHIFTING WIND TO THE EAST BY MIDNIGHT. AN
ABUNDANCE OF MOISTURE WILL HANG AROUND THROUGH THE OVERNIGHT
HOURS...KEEPING SOME SHOWERS GOING INTO WEDNESDAY. THE ATMOSPHERE
WILL DESTABILIZE TOMORROW AFTERNOON...BRINGING BACK A CHANCE FOR
MORE THUNDERSTORMS...WITH A HIGH CHANCE OF WETTING RAINS.

DRIER AIR WILL MOVE IN ON THURSDAY BUT THERE WILL STILL BE
ENOUGH INSTABILITY AND RESIDUAL MOISTURE AROUND IN THE AFTERNOON
TO KEEP SHOWERS AND THUNDERSTORMS IN THE FORECAST.

ANOTHER LARGE TROUGH WILL COME THROUGH ON FRIDAY..DROPPING
TEMPERATURES BELOW FREEZING AT NIGHT AND POSSIBLY BRINGING A
DUSTING OF SNOW TO THE HIGHER ELEVATIONS.

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

FORECASTER...ALLEN

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). ISOLATED
                    THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF
                    RAIN SHOWERS THROUGH THE NIGHT.
MIN TEMPERATURE.....34-37.
MAX HUMIDITY........90-100 PERCENT.
20 FOOT WINDS.......EAST WINDS AROUND 8 MPH WITH GUSTS TO AROUND 15
                    MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH SHIFTING TO THE SOUTH AFTER
                    0400.
LAL.................2 UNTIL 2100...THEN 1.
CHC OF WETTING RAIN.15 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS IN THE MORNING...THEN CHANCE OF
                    RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....61-66.
MIN HUMIDITY........38-43 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 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 1400...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S.
WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS
THAN 10 MPH.
.SATURDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. A SLIGHT CHANCE OF SNOW ABOVE 10000 FEET. LOWS IN
THE MID 30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. A SLIGHT CHANCE OF SNOW ABOVE 10000 FEET. LOWS IN
THE LOWER 30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...MERIDIAN IC
REASON FOR REQUEST...WILDFIRE
.TAG 20110913.REDRO.01/RIW