FNUS75 KRIW 101009 FWSRIW SPOT FORECAST FOR GREEN...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 409 AM MDT SAT AUG 10 2013 FORECAST IS BASED ON REQUEST TIME OF 2122 MDT ON AUGUST 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... MID-LEVEL CLOUDS DRIFTING ACROSS THE AREA THIS MORNING WILL BLOSSOM INTO SCATTERED THUNDERSTORMS THIS AFTERNOON ACROSS THE FIRE AREA. ANY THUNDERSTORM WILL BE CAPABLE OF PRODUCING GUSTY OUTFLOW WINDS...FREQUENT LIGHTNING BUT ALSO BRIEF HEAVY RAIN. THE CHANCES OF STORMS WILL DECREASE SIGNIFICANTLY ON SUNDAY TO JUST ISOLATED STORMS. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...SKRBAC .TODAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS IN THE LATE MORNING...THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....65-68. MIN HUMIDITY........24-27 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH. LAL.................1 UNTIL 1000...THEN 2 UNTIL 1200...THEN 4. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5100-6100 FT AGL INCREASING TO 8500-9500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH. SMOKE DISPERSAL.....FAIR TO VERY GOOD (58700-108600 KNOT-FT). .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SCATTERED SHOWERS AND THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....45-49. MAX HUMIDITY........51-54 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE SOUTHEAST LATE IN THE EVENING...THEN SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. LAL.................4 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6100-7100 FT AGL DECREASING TO 2400-3400 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHWEST 10-15 MPH SHIFTING TO THE SOUTHEAST LATE IN THE EVENING...THEN BECOMING SOUTHWEST DURING THE EARLY MORNING HOURS. SMOKE DISPERSAL.....POOR TO GOOD (30100-73900 KNOT-FT). .SUNDAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....70-73. MIN HUMIDITY........17-20 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....WEST 10 TO 15 MPH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.3 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5400-6400 FT AGL INCREASING TO 9000-10000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 15 TO 18 MPH. SMOKE DISPERSAL.....GOOD (80800 KNOT-FT) INCREASING TO EXCELLENT (156500 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...SKRBAC REQUESTED BY...DIANE RAU REASON FOR REQUEST...WILDFIRE .TAG 20130809.GREEN.01/RIW