FNUS75 KRIW 221112
FWSRIW

SPOT FORECAST FOR RED ROCK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
512 AM MDT MON AUG 22 2011

FORECAST IS BASED ON REQUEST TIME OF 2137 MDT ON AUGUST 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...UPPER HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL SHIFT
WESTWARD OVER THE NEXT COUPLE OF DAYS. TEMPERATURES WILL TREND HIGHER
AND RELATIVE HUMIDITY DRIER TODAY AND TUESDAY.  VERY WARM
TEMPERATURES...VERY LOW RELATIVE HUMIDITY AND GUSTY AFTERNOON WEST
WIND WILL INCREASE THE FIRE DANGER SIGNIFICANTLY ON TUESDAY.
ISOLATED LATE AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED TODAY...
HOWEVER THIS ACTIVITY WILL BE MUCH MORE ISOLATED THAN ON SUNDAY.
NO THUNDERSTORMS ARE EXPECTED ON TUESDAY.


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

FORECASTER...SKRBAC/LIPSON

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). AN ISOLATED SHOWER
                    OR THUNDERSTORM IS POSSIBLE BETWEEN 1500 AND 1900.
MAX TEMPERATURE.....77-79.
MIN HUMIDITY........17-19 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE UNTIL 1200. THEN SOUTHWEST 5-9 MPH
                    BECOMING WEST AROUND 10 MPH AND GUSTY BY 1500. GUSTY
                    AND ERRATIC WINDS POSSIBLE AROUND ANY SHOWER ACTIVITY.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1 UNTIL 1500L THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400-3400 FT AGL INCREASING TO 6700-7700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST 17 TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (25000 KNOT-FT) INCREASING TO VERY GOOD
                    (120000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........59-62 PERCENT.
20 FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
                    15 MPH EARLY IN THE EVENING BECOMING SOUTHWEST 5 TO 9 MPH
                    BY MIDNIGHT AND THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH BY 0900.
                    GUSTY AND ERRATIC WINDS POSSIBLE AROUND ANY SHOWER ACTIVITY
                    EARLY IN THE EVENING.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6700-7700 FT AGL DECREASING TO 2500-3500 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH 12 TO 21 MPH.
SMOKE DISPERSAL.....GOOD (90000 KNOT-FT) DECREASING TO POOR
                    (29100 KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....77-79.
MIN HUMIDITY........11-12 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND
                    12 MPH BY 1100 WITH HIGHER GUSTS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 10-15 MPH INCREASING TO AROUND 20 MPH
                    IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL INCREASING TO 7100-8100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 12 MPH INCREASING TO WEST 21 TO
                    22 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (35300 KNOT-FT) INCREASING TO EXCELLENT
                    (153000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 40. WINDS GENERALLY
LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...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.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC/LIPSON
REQUESTED BY...CHRIS VERO
REASON FOR REQUEST...WILDFIRE
.TAG 20110821.REDRO.03/RIW