FNUS75 KRIW 220844
FWSRIW

SPOT FORECAST FOR RED ROCK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
244 AM MDT THU SEP 22 2011

FORECAST IS BASED ON REQUEST TIME OF 1725 MDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER RIDGE OF HIGH PRESSURE WILL CONTINUE TO
STRENGTHEN OVER THE ROCKIES TODAY...USHERING WARMER TEMPERATURES
AND A VERY DRY AND STABLE AIRMASS. SCATTERED HIGH CLOUDS WILL PUSH
IN ON FRIDAY WITH TEMPERATURES TRENDING SLIGHTLY WARMER. WINDS ARE
EXPECTED TO MOSTLY TERRAIN DRIVEN THROUGH THE PERIOD...WITH NO
SIGNIFICANT TRENDS FROM WEDNESDAY/S SURFACE WIND FIELD.

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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........21-25 PERCENT.
20 FOOT WINDS.......EAST SOUTHEAST 5-9 MPH...BECOMING WEST NORTHWEST
                    AROUND 10 MPH WITH GUSTS 15 TO 20 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH IN THE MORNING...INCREASING
                    TO 10 TO 15 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......BELOW 1000 FT AGL THROUGH 0900...INCREASING TO
                    4300-5300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH THROUGH 0900...BECOMING
                    WEST 10 TO 15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR IN THE MORNING...FAIR IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....34-37.
MAX HUMIDITY........65-70 PERCENT.
20 FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH GUSTS 15 TO 20 MPH
                    UNTIL SUNSET...BECOMING DOWNSLOPE/DOWNVALLEY OR
                    EAST SOUTHEAST 4-8 MPH AFTER MIDNIGHT.
RIDGE TOP WINDS.....WEST AROUND 10 MPH BECOMING NORTHWEST 5 TO 10 MPH
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL DECREASING TO BELOW 1000 FT
                    AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE NORTHWEST 5
                    TO 10 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR.

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....68 TO 72.
MIN HUMIDITY........23-26 PERCENT.
20 FOOT WINDS.......EAST NORTHEAST 5-9 MPH...BECOMING NORTHWEST
                    AROUND 10 MPH WITH GUSTS 15 TO 20 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST AROUND 5 MPH IN THE MORNING...BECOMING
                    WEST 5 TO 10 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......BELOW 1000 FT AGL THROUGH 0900...INCREASING TO
                    4500-5500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH IN THE MORNING...BECOMING
                    WEST 5 TO 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...CLEAR. LOWS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH.

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

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

.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS IN THE
MID 30S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...SHADOW MTN FEMU
REASON FOR REQUEST...WILDFIRE
.TAG 20110921.REDRO.01/RIW