FNUS75 KRIW 251845 FWSRIW SPOT FORECAST FOR BUTTE CREEK...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 1245 PM MDT SAT AUG 25 2012 FORECAST IS BASED ON REQUEST TIME OF 1147 MDT ON AUGUST 25. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING... .DISCUSSION... WARM...VERY DRY AND BREEZY CONDITIONS WILL CONTINUE WITH CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON AND EVENING. RECOVERY TONIGHT WILL BE MINIMAL WITH HUMIDITY VALUES IN THE UPPER 30S...HOWEVER WINDS WILL DIE DOWN BEFORE MIDNIGHT TONIGHT. ON SUNDAY...THERE IS A CHANCE FOR ISOLATED SHOWERS AND THUNDERSTORMS TO DEVELOP OVER THE AREA. GUSTY WINDS UP TO 45 MPH AND LIGHTNINGS WILL BE THE MAIN HAZARDS SHOULD ANY STORMS FORM. OUTSIDE OF THIS ACTIVITY...WINDS WILL BE LIGHTER WITH SOUTHWEST WIND GUSTS TO 20 MPH. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...LAVOIE .TODAY... SKY/WEATHER.........SUNNY (0-5 PERCENT). MAX TEMPERATURE.....65-68 BELOW 10000 FT...61-64 ABOVE 10000 FT. MIN HUMIDITY........9-12 PERCENT. 20 FOOT WINDS.......WEST WINDS 10 TO 17 MPH. GUSTS UP TO 25 MPH INCREASING TO 30 MPH BY 1400. RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH SHIFTING TO THE WEST AROUND 25 MPH BY 1400. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 6700-7700 FT AGL BY 1500. TRANSPORT WINDS.....WEST 20 TO 30 MPH. SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT BY 1500. .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PERCENT). MIN TEMPERATURE.....41-44 BELOW 10000 FT...45-48 ABOVE 10000 FT. MAX HUMIDITY........36-39 PERCENT. 20 FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH DECREASING TO 15 MPH BY 2100. RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5000-6000 FT AGL DECREASING TO 1400-2000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHWEST 18 TO 25 MPH. SMOKE DISPERSAL.....VERY GOOD DECREASING TO POOR AFTER MIDNIGHT. .SUNDAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 70 BELOW 10000 FT...65-68 ABOVE 10000 FT. MIN HUMIDITY........15-18 PERCENT. 20 FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH EARLY IN THE MORNING BECOMING UPSLOPE/UPVALLEY 5-10 MPH...THEN BECOMING SOUTHWEST 15 MPH IN THE AFTERNOON. GUSTS UP TO 20 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.3 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH IN THE MORNING...DECREASING TO 4 OR LOW POTENTIAL AFTER 1300. MIXING HEIGHT.......4000-5000 FT AGL INCREASING TO 7300-8000 FT AGL BY 1500. TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH. SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT BY 1500. .FORECAST DAYS 3 THROUGH 5... .SUNDAY NIGHT...PARTLY CLOUDY. AREAS OF SMOKE IN THE EVENING. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...LAVOIE REQUESTED BY...USFS REASON FOR REQUEST...WILDFIRE .TAG 20120825.BUTTE.01/RIW