FNUS75 KRIW 260921 AAA
FWSRIW

SPOT FORECAST FOR RED ROCK...TETON INTERAGENCY DISPATCH CENTER
NATIONAL WEATHER SERVICE RIVERTON WY
320 AM MDT FRI AUG 26 2011

FORECAST IS BASED ON REQUEST TIME OF 1641 MDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

UPDATED TO PRIMARILY ADD ISOLATED THUNDERSTORMS FOR THE REST OF
TONIGHT AND FOR ALL OF FRIDAY MORNING.

.DISCUSSION...

MONSOONAL MOISTURE WILL CONTINUE TO ROTATE ACROSS THE AREA WITH
ISOLATED SHOWERS AND THUNDERSTORMS...ESPECIALLY IN THE AFTERNOON AND
EARLY EVENING. THIS ACTIVITY IS EXPECTED TO BE WEAKER...LESS
ORGANIZED THAN WHAT OCCURRED ON THURSDAY...WITH THE LACK OF ANY
SIGNIFICANT UPPER LEVEL DISTURBANCES.

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

FORECASTER...MEUNIER/MURRELL

.REST OF TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50 PERCENT) WITH ISOLATED SHOWERS
                    AND THUNDERSTORMS.
MIN TEMPERATURE.....50-55.
MAX HUMIDITY........71-74 PERCENT.
20 FOOT WINDS.......SOUTHEAST WINDS 4-8 MPH...EXCEPT ERRATIC AND
                    GUSTY NEAR ANY THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHEAST 5 TO 10 MPH.
LAL.................2.
CHC OF WETTING RAIN.2 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....SOUTH 4 TO 8 MPH.
SMOKE DISPERSAL.....GOOD (96300 KNOT-FT) DECREASING TO POOR (32400
                    KNOT-FT) AFTER MIDNIGHT.

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY WITH ISOLATED SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....77-80
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......SOUTHEAST AROUND 5 MPH THROUGH 0900L...BECOMING
                    SOUTHWEST 8 TO 13 MPH WITH GUSTS TO 20 MPH AROUND
                    NOON.  GUSTY ERRATIC WINDS NEAR SHOWERS AND
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH SHIFTING TO THE SOUTHWEST 15
                    TO 20 MPH AROUND NOON.
LAL.................2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2100-3100 FT AGL INCREASING TO 5800-6800 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST 15 TO 20 MPH IN THE LATE MORNING AND
                    AFTERNOON.
SMOKE DISPERSAL.....POOR THROUGH 1000L...INCREASING TO VERY GOOD
                    BY AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY NIGHT...PARTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. WINDS GENERALLY LESS THAN
10 MPH.

.SATURDAY...PARTLY CLOUDY WITH SCATTERED THUNDERSTORMS AND
SHOWERS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. 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 MID 40S. HIGHS IN THE MID 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.

$$

FORECASTER...MEUNIER/MURRELL
REQUESTED BY...DALLAS LOOKOUT
REASON FOR REQUEST...WILDFIRE
.TAG 20110825.REDRO.01/RIW