FNUS75 KRIW 311025
FWSRIW

SPOT FORECAST FOR RED ROCK...BRIDGER-TETON NATIONAL FOREST
NATIONAL WEATHER SERVICE RIVERTON WY
425 AM MDT WED AUG 31 2011

FORECAST IS BASED ON REQUEST TIME OF 1725 MDT ON AUGUST 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
ISOLATED EARLY MORNING SHOWERS AND THUNDERSTORMS WILL LIFT NORTH
OF THE AREA AFTER 0800.  ISOLATED SHOWERS AND THUNDERSTORMS WILL REDEVELOP
THIS AFTERNOON AHEAD OF AN APPROACHING COLD FRONT. THIS COLD FRONT
WILL PUSH ACROSS THE AREA AROUND 1800. WIND SPEEDS WILL INCREASE
TODAY AND THIS EVENING AHEAD OF AND WITH THE FRONTAL PASSAGE. SURFACE
WINDS ARE EXPECTED FROM THE WEST TO NORTHWEST TODAY INTO THIS
EVENING AT THE SITE AS THE WIND IS CHANNELED BY THE TERRAIN WITHIN
THE VALLEY. THURSDAY WILL BE LESS WINDY AND COOLER BEHIND THE COLD
FRONT. THURSDAY NIGHT AND FRIDAY LOOK DRY WITH BREEZY CONDITIONS
ON FRIDAY AFTERNOON.

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

FORECASTER...AR/AEM

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....71-75.
MIN HUMIDITY........20-25 PERCENT.

20 FOOT WINDS.......GUSTY ERRATIC WINDS WITH THUNDERSTORMS THROUGH 0800.
                    OTHERWISE EAST AT 4 TO 8 MPH UNTIL 1000. THEN BECOMING
                    WEST NORTHWEST AT 10 TO 15 MPH BY 1200.
                    WEST TO NORTHWEST AT 15 TO 20 MPH WITH GUSTS
                    AROUND 30 MPH AFTER 1200.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS TO 40 MPH IN THE AFTERNOON.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 15 TO 25 MPH BY 1100.
                    SOUTHWEST 20 TO 25 MPH WITH GUSTS TO 35 MPH
                    AFTERNOON 1200.

LAL.................2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 8000 TO 9000 FEET AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH SOUTHEAST AT 10 MPH UNTIL 1000. THEN BECOMING
                    SOUTHWEST AT 25 TO 30 MPH BY 1200.
SMOKE DISPERSAL.....INCREASING TO EXCELLENT IN THE AFTERNOON.


.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    ISOLATED THUNDERSTORMS.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........70-75 PERCENT.

20 FOOT WINDS.......WEST TO NORTHWEST AT 13 TO 18 MPH WITH GUSTS
                    AROUND 25 MPH UNTIL 2100. WIND BECOMING SOUTH
                    TO SOUTHEAST AT 5 TO 10 MPH BY 2300.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS TO 35 MPH.

RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH MPH UNTIL 2100...THEN
                    SOUTH TO SOUTHWEST AT 10 TO 15 MPH AFTER 2100.

LAL.................2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 600-1100 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 2100.
                    SOUTH TO SOUTHWEST 10 TO 15 MPH AFTER 2100.
SMOKE DISPERSAL.....VERY GOOD...DECREASING TO POOR BY MIDNIGHT.


.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY IN THE MORNING. THEN BECOMING
                    MOSTLY CLOUDY FOR THE AFTERNOON.
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........25-30 PERCENT.

20 FOOT WINDS.......SOUTH TO SOUTHEAST AT 4 TO 7 MPH UNTIL 1200.
                    WEST TO NORTHWEST AT 10 TO 15 MPH AFTER 1200
                    WITH GUSTS AROUND 20 MPH.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS TO 35 MPH.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 7 TO 12 MPH UNTIL 1200.
                    WEST TO SOUTHWEST AT 13 TO 18 MPH AFTER 1200
                    WITH GUSTS 20 TO 25 MPH.

LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 6000-7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH IN THE MORNING.
                    SOUTHWEST 20 TO 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....INCREASING TO VERY GOOD BY 1400.

.FORECAST DAYS 3 THROUGH 5...

.THURSDAY NIGHT...PARTLY CLOUDY. LOWS 30 TO 35. WEST TO NORTHWEST WIND
10 TO 15 MPH UNTIL SUNSET...THEN SOUTH SOUTH SOUTHEAST AT 4 TO 7 MPH.

.FRIDAY...MOSTLY CLEAR.  HIGHS IN THE UPPER 60S. SOUTH TO SOUTHEAST
AT 4 TO 8 MPH UNTIL NOON. THEN WEST TO NORTHWEST WIND 10 TO 20 MPH
AFTER NOON.

.SATURDAY...CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ROSS/MEUNIER
REQUESTED BY...VAIL IC
REASON FOR REQUEST...WILDFIRE
.TAG 20110830.REDRO.02/RIW