FNUS75 KRIW 211438
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
838 AM MDT SUN AUG 21 2011

FORECAST IS BASED ON REQUEST TIME OF 0809 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A SOUTHWEST FLOW WILL BE OVER THE FIRE AREA TODAY AND TONIGHT WITH
SOME MID AND HIGH LEVEL MOISTURE. THIS WILL BRING ISOLATED SHOWERS
AND THUNDERSTORMS THROUGH THIS EVENING. LIGHTNING AND WIND GUSTS
TO 40 MPH WILL BE THE PRIMARY THREATS. THE ATMOSPHERE DRIES SOME
FOR MONDAY WITH MAINLY SOME CUMULUS EXPECTED. SOUTHWEST WINDS AT
RIDGETOP LEVEL WILL BEGIN TO INCREASE WITH LOWER RH'S AND WARMER
TEMPS.

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

FORECASTER...T.BAKER

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY THROUGH LATE MORNING...THEN PARTLY
                    CLOUDY (40-50 PERCENT) WITH ISOLATED SHOWERS AND
    THUNDERSTORMS.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........22-27 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-9 MPH. GUSTY AND ERRATIC
                    WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH.  GUSTY AND ERRATIC
                    WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS.
LAL.................2.
CHC OF WETTING RAIN.5-10 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........64-67 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH. GUSTY AND ERRATIC
                    WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND
                    10 MPH AND GUSTY IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH INCREASING TO AROUND 15
                    MPH LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID
70S. SOUTHWEST TO WEST WINDS 10-15 MPH GUSTS TO 25 MPH.
.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 70S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...T.BAKER
REQUESTED BY...STEFFENS
REASON FOR REQUEST...WILDFIRE
.TAG 20110821.REDRO.01/RIW