FNUS75 KRIW 270110
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
710 PM MDT FRI AUG 26 2011

FORECAST IS BASED ON REQUEST TIME OF 1734 MDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...ONLY VERY ISOLATED SHOWERS REMAINED UPSTREAM TO THE WEST
THIS EVENING BEHIND SHOWERS CURRENTLY PASSING OVER THE AREA.  A
SLIGHTLY UNSTABLE AIRMASS WITH MOISTURE CONTINUING TO MOVE UP FROM
SOUTHEAST IDAHO WILL KEEP THE POSSIBILITY OF AN ISOLATED SHOWER OR
THUNDERSTORM OVERNIGHT. A PLUME OF MONSOONAL MOISTURE WILL
CONTINUE TO ROTATE ACROSS THE AREA OVER THE WEEKEND WITH LATE DAY
SHOWERS AND THUNDERSTORMS BLOSSOMING...SOME ISOLATED ACTIVITY
LINGERING OVERNIGHT. TEMPERATURES AND RELATIVE HUMIDITY WILL SHOW
LITTLE TREND ON SATURDAY WIT SLIGHTLY COOLER TEMPERATURES ON
SUNDAY.

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

FORECASTER...MEUNIER

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). AN ISOLATED SHOWER OR
                    THUNDERSTORM POSSIBLE OVERNIGHT.
MIN TEMPERATURE.....47-50.
MAX HUMIDITY........73-76 PERCENT.
20 FOOT WINDS.......EAST NORTHEAST 4 TO 8 MPH.  GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR SHOWERS AND THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4800-5800 FT AGL DECREASING TO 400 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD (73200 KNOT-FT) DECREASING TO POOR (3300
                    KNOT-FT) AFTER MIDNIGHT.

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY THROUGH 1000L...BECOMING MOSTLY CLOUDY
                    BY 1500L.  ISOLATED THUNDERSTORMS IN THE
                    AFTER 1100L. SHOWERS AND THUNDERSTORMS BECOMING
                    WIDELY SCATTERED IN THE AFTERNOON.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........25-28 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE IN THE MORNING...BECOMING
                    SOUTHWEST 5 TO 10 MPH WITH GUSTS TO 15 MPH AROUND NOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH SHIFTING TO THE WEST SOUTHWEST AROUND
                    15 MPH IN THE AFTERNOON.
LAL.................2 UNTIL 1400L...THEN 3.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3300-4300 FT AGL INCREASING TO 6500-7300 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE WEST 15
                    MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (34100-78700 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. AREAS OF SMOKE. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...STULL
REASON FOR REQUEST...WILDFIRE
.TAG 20110826.REDRO.01/RIW