FNUS75 KRIW 031829
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
1229 PM MDT SAT SEP 3 2011

FORECAST IS BASED ON REQUEST TIME OF 1206 MDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY WITH SEASONAL TEMPERATURES EXPECTED TODAY AND SUNDAY. WINDS
WILL BE WEAKER...AND MIN RH ABOUT 10 PERCENT HIGHER THAN WHAT
OCCURRED YESTERDAY. SOME MOISTURE IS EXPECTED TO SURGE NORTHWARD
AHEAD OF A WEAK DISTURBANCE LATE MONDAY. SOME THUNDERSTORM ACTIVITY
COULD OCCUR WITH THIS SYSTEM LATE MONDAY INTO TUESDAY.

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

FORECASTER...LIPSON

.REST OF TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....66.
MIN HUMIDITY........24 PERCENT.
20 FOOT WINDS.......NORTHERLY UPSLOPE/UPVALLEY  5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6100-7100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD (94100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....29-32.
MAX HUMIDITY........77-80 PERCENT.
20 FOOT WINDS.......NORTH AROUND 8 MPH EARLY IN THE
                    EVENING BECOMING DOWNSLOPE 4-7 MPH FROM THE
                    SOUTH SOUTHWEST BY 2000. WINDS BECOMING SOUTH AT 5 TO 8 MPH
                    BY 0300.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE
                    SOUTHEAST IN THE LATE EVENING AND OVERNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5400-6400 FT AGL DECREASING TO 2000-3000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 22 MPH SHIFTING TO THE
                    SOUTHEAST AROUND 20 MPH IN THE LATE EVENING AND
                    OVERNIGHT.
SMOKE DISPERSAL.....VERY GOOD (101100 KNOT-FT) DECREASING TO FAIR
                    (40500 KNOT-FT) AFTER MIDNIGHT.

.SUNDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....62.
MIN HUMIDITY........26 PERCENT.
20 FOOT WINDS.......SOUTH 4 TO 7 MPH UNTIL 1100. THEN UPSLOPE/UPVALLEY
                    FROM THE NORTH 5-9 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH SHIFTING TO THE
                    SOUTHWEST IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL INCREASING TO 6100-7100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 17 TO 20 MPH SHIFTING TO THE
                    SOUTHWEST 17 TO 22 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (33300 KNOT-FT) INCREASING TO GOOD (95900
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...CLEAR. LOWS IN THE MID 30S. WINDS GENERALLY LESS
THAN 10 MPH.
.LABOR DAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS AROUND 40. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN
10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. 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.

$$

FORECASTER...LIPSON
REQUESTED BY...VAIL LOOKOUT
REASON FOR REQUEST...WILDFIRE
.TAG 20110903.REDRO.01/RIW