FNUS75 KRIW 261933 FWSRIW SPOT FORECAST FOR BULL...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 133 PM MDT THU AUG 26 2010 FORECAST IS BASED ON REQUEST TIME OF 1215 MDT ON AUGUST 26. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING... .DISCUSSION... RED FLAG CONDITIONS WILL PERSIST THIS AFTERNOON OVER THE FIRE...WITH CONTINUED WARMING TEMPERATURES AND LOW RH'S. GUSTY SOUTHWEST WINDS AND HAINES INDICES OF 6 WILL DEVELOP THIS AFTERNOON AND COMBINE WITH CRITICALLY DRY FUELS TO CREATE RED FLAG CONDITIONS. AN APPROACHING TROUGH OF LOW PRESSURE WILL BRING INCREASED MOISTURE TO THE AREA...AND PUT ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS IN THE FORECAST FOR TONIGHT AND THROUGH THE WEEKEND. ALSO...TEMPERATURES WILL DECREASE AND DAYTIME HUMIDITIES WILL INCREASE UNDER THE INFLUENCE OF THIS APPROACHING SYSTEM. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MCNEEL .TODAY... SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT). MAX TEMPERATURE.....78-83. MIN HUMIDITY........13-18 PERCENT. 20 FOOT WINDS.......EAST 5 TO 10 MPH...BECOMING SOUTHWEST 13 TO 17 MPH WITH GUSTS UP TO 20 MPH AFTER 1400. RIDGE TOP WINDS.....SOUTHEAST 5 TO 10 MPH...SHIFTING TO THE SOUTHWEST AND INCREASING TO 13 TO 17 MPH WITH GUSTS UP TO 20 TO 25 MPH AFTER 1400 LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......7200-8200 FT AGL INCREASING TO 12200-13200 FT AGL AFTER 1400. TRANSPORT WINDS.....SOUTHWEST 14 TO 18 MPH. SMOKE DISPERSAL.....VERY GOOD (120000 KNOT-FT) INCREASING TO EXCELLENT (200000 KNOT-FT) AFTER 1400. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). ISOLATED RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....48-53. MAX HUMIDITY........55-62 PERCENT. 20 FOOT WINDS.......SOUTHWEST WINDS 8 TO 13 MPH...BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH AFTER 2300. RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH. LAL.................1. CHC OF WETTING RAIN.LESS THAN 5 PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......12200-13200 FT AGL DECREASING TO 5500-6500 FT AGL AFTER 2400. TRANSPORT WINDS.....SOUTHEAST 13 TO 18 MPH...BECOMING SOUTH 13 TO 18 MPH AFTER 2400. SMOKE DISPERSAL.....EXCELLENT (200000 KNOT-FT) DECREASING TO GOOD (90000 KNOT-FT) AFTER 2400. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED RAIN SHOWERS IN THE MORNING...THEN SCATTERED SHOWERS AND THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....68-73. MIN HUMIDITY........26-31 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 14 TO 18 MPH WITH GUSTS TO AROUND 20 TO 25 MPH AFTER 1200. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTHWEST 17 TO 22 MPH. LAL.................1 UNTIL 1200...THEN 3. CHC OF WETTING RAIN.4 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5500-6500 FT AGL INCREASING TO 10000-11000 FT AGL AFTER 1400. TRANSPORT WINDS.....SOUTHWEST 12 TO 17 MPH...INCREASING TO 20 TO 25 MPH AFTER 1200. SMOKE DISPERSAL.....GOOD (90000 KNOT-FT) INCREASING TO EXCELLENT (241500 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .FRIDAY NIGHT...PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND 11 MPH. .SUNDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MCNEEL REQUESTED BY...BULL OPERATIONS REASON FOR REQUEST...WILDFIRE .TAG 20100826.BULL_.01/RIW