FNUS75 KRIW 271015
FWSRIW

SPOT FORECAST FOR RED ROCK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
415 AM MDT TUE SEP 27 2011

FORECAST IS BASED ON REQUEST TIME OF 2023 MDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A RIDGE OF HIGH PRESSURE WILL ONCE AGAIN BUILD INTO THE AREA
TODAY. THIS WILL RESULT IN DRY AND UNSEASONABLY WARM TEMPERATURES.
WINDS ARE EXPECTED TO BE UPSLOPE/UPVALLEY...OR NORTHWEST TO
SOUTHWEST DEPENDING UPON DRAINAGE ORIENTATION IN THE RED ROCK
COMPLEX. A WEAK...DRY COLD FRONT IS EXPECTED TO MOVE ACROSS WESTERN
WYOMING WEDNESDAY...WITH SLIGHTLY STRONGER WESTERLY WINDS THAN
WHAT IS EXPECTED TODAY. HOWEVER...MOST OF THE IMPACT FROM THIS
COLD FRONT WILL BE EAST OF THE DIVIDE.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........19-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST TO
                    NORTHWEST 8-12 MPH...BETWEEN NOON AND 1400.
                    GUSTS TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH...SHIFTING TO THE WEST 10
                    TO 15 MPH BETWEEN NOON AND 1400.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......800 FT AGL INCREASING TO 4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5-10 MPH...BECOMING WEST 10 TO
                    15 MPH BETWEEN NOON AND 1400.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY EARLY AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........70-75 PERCENT.
20 FOOT WINDS.......BECOMING DOWNSLOPE/DOWNVALLEY OR SOUTHEAST
                    3-6 MPH BY 2000. GUST UP TO 15 MPH THROUGH 2000.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE SOUTH AROUND
                    5 MPH BY 2100.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1200 FT AGL BY 2100.
TRANSPORT WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE SOUTH AROUND
                    5 MPH BY 2100.
SMOKE DISPERSAL.....DECREASING TO POOR BY 2000.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY SUNNY (15 PERCENT).
MAX TEMPERATURE.....64-68.
MIN HUMIDITY........20-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 10 TO 15
                    MPH WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST AROUND
                    15 MPH BY EARLY AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 5000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 8 TO 12 MPH INCREASING TO WEST AROUND
                    15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....INCREASING TO GOOD BY EARLY AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY NIGHT...CLEAR. LOWS IN THE MID 30S.
WINDS GENERALLY LESS THAN 10 MPH.

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

.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...UPPER PALMER RX
REASON FOR REQUEST...WILDFIRE
.TAG 20110926.REDRO.01/RIW