FNUS75 KRIW 081029 FWSRIW SPOT FORECAST FOR RED ROCK...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 429 AM MDT THU SEP 8 2011 FORECAST IS BASED ON REQUEST TIME OF 2004 MDT ON SEPTEMBER 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN EASTERLY FLOW WILL REMAIN OVER THE AREA TODAY AND FRIDAY. THE MORNING WILL BEGIN WITH LESS CLOUD COVER TODAY WHICH WILL RESULT IN TEMPERATURES TRENDING SLIGHTLY WARMER AND RELATIVE HUMIDITY SLIGHTLY DRIER. ISOLATED SHOWERS AND THUNDERSTORMS WILL BEGIN DEVELOPING AROUND 1400L WITH MOST OF THIS ACTIVITY DEVELOPING NORTH AND WEST OF THE FIRE AND MOVING WESTWARD. DRIER AND WARMER WEATHER WITH LESS CLOUD COVER WILL PREVAIL ON FRIDAY. VERY ISOLATED SHOWERS AND THUNDERSTORMS MAY DEVELOP IN THE AFTERNOON...BUT MOSTLY OVER THE TETON RANGE AND WESTWARD WITH ANY STORMS CONTINUING TO TRACK TO THE WEST. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MEUNIER .TODAY... SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT) IN THE MORNING...THEN BECOMING PARTLY CLOUDY (45-55 PERCENT) BY 1400 WITH ISOLATED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....67-70. MIN HUMIDITY........26-29 PERCENT. 20 FOOT WINDS.......EAST NORTHEAST 7 TO 12 MPH THROUGH 1400...THEN BECOMING INCREASINGLY DOMINATED BY SHOWER AND THUNDERSTORM ERRATIC OUTFLOWS...PRIMARILY FROM STORMS TO THE NORTH AND WEST OF THE FIRE THROUGH THE AFTERNOON. RIDGE TOP WINDS.....EAST 5 TO 10 MPH. LAL.................1 UNTIL 1400...THEN 2. CHC OF WETTING RAIN.4 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......LESS THAN 1000 FT AGL UNTIL 0900...INCREASING TO 8000-9000 FT AGLIN THE AFTERNOON. TRANSPORT WINDS.....NORTH TO NORTHEAST AROUND 5 MPH. SMOKE DISPERSAL.....POOR. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) IN THE EVENING. ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2000. CLEARING AFTER MIDNIGHT. MIN TEMPERATURE.....34-37. MAX HUMIDITY........82-85 PERCENT. 20 FOOT WINDS.......ERRATIC OUTFLOW WIND FROM NEARBY SHOWERS AND THUNDERSTORMS DOMINATING THROUGH 2000...THEN BECOMING EAST SOUTHEAST 5 TO 10 MPH. RIDGE TOP WINDS.....EAST SOUTHEAST 5 TO 10 MPH. LAL.................2 UNTIL 2000...THEN 1. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5100-6100 FT AGL DECREASING TO 300-1000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....EAST SOUTHEAST AROUND 5 MPH. SMOKE DISPERSAL.....POOR. .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS DEVELOPING PRIMARILY OVER THE TETON RANGE AND WESTWARD IN THE AFTERNOON. MAX TEMPERATURE.....65-70. MIN HUMIDITY........21-24 PERCENT. 20 FOOT WINDS.......PRIMARILY EAST 5-9 MPH...POSSIBLY BECOMING BRIEFLY UP VALLEY UPSLOPE OR NORTHWEST IN THE AFTERNOON. RIDGE TOP WINDS.....EAST AROUND 10 MPH. LAL.................1 UNTIL 1400...THEN 2. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......LESS THAN 1000 FT AGL THROUGH 0900...INCREASING TO 7300-8300 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....EAST SOUTHEAST 10 TO 15 MPH. SMOKE DISPERSAL.....POOR INCREASING TO GOOD IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 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...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MEUNIER REQUESTED BY...RED ROCK REASON FOR REQUEST...WILDFIRE .TAG 20110907.REDRO.01/RIW