FNUS75 KRIW 181245 FWSRIW SPOT FORECAST FOR BULL...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 645 AM MDT WED AUG 18 2010 FORECAST IS BASED ON REQUEST TIME OF 1704 MDT ON AUGUST 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE NEAR THE FIRE TODAY AND TONIGHT. BREEZY WEST TO SOUTHWEST WINDS WILL DEVELOP BY EARLY AFTERNOON...BUT WINDS COULD BE HIGHLY VARIABLE IN BOTH DIRECTION AND SPEED DUE TO POSSIBLE SHOWER AND THUNDERSTORM ACTIVITY TODAY. ISOLATED THUNDERSTORMS WILL ONCE AGAIN BE POSSIBLE THURSDAY...WITH BREEZY WEST WINDS CONTINUING. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MURRELL .TODAY... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....75-80. MIN HUMIDITY........19-23 PERCENT. WIND (20 FT)........UPSLOPE/UPVALLEY 4-8 MPH...BECOMING SOUTHWEST 5-10 MPH AROUND NOON...THEN WEST 9-13 MPH BY AROUND 1400. GUSTS AROUND 20 MPH. GUSTY AND ERRATIC WINDS TO 40 MPH EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHWEST AROUND 10 MPH BETWEEN 1000 AND NOON...THEN WEST 14 TO 18 MPH AROUND 1400. GUSTS TO 30 MPH. GUSTS TO 40 MPH NEAR THUNDERSTORMS. LAL.................2. CWR.................LESS THAN 5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3500 FT AGL INCREASING TO 9000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH...THEN WEST AROUND 20 MPH BY EARLY AFTERNOON. SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT BY EARLY AFTERNOON. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....AROUND 50. MAX HUMIDITY........60-65 PERCENT. WIND (20 FT)........WEST WINDS 5-10 MPH...BECOMING DOWNSLOPE/DOWNVALLEY 3-6 MPH BY 2100. GUSTY WINDS TO 15 MPH IN THE EVENING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....WEST AROUND 15 MPH...DECREASING TO 5-10 MPH BY MIDNIGHT. LAL.................2 UNTIL 2400...THEN 1. CWR.................LESS THAN 5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5000 FT AGL DECREASING TO 1500 FT AGL BY MIDNIGHT. TRANSPORT WINDS.....WEST AROUND 15 MPH...DECREASING TO 5-10 MPH BY MIDNIGHT. SMOKE DISPERSAL.....VERY GOOD (108800 KNOT-FT) DECREASING TO POOR (15500 KNOT-FT) BY MIDNIGHT. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....68-72. MIN HUMIDITY........20-25 PERCENT. WIND (20 FT)........WEST 4-8 MPH BY 1000...INCREASING TO 10-15 MPH BETWEEN NOON AND 1400. GUSTS AROUND 20 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20 MPH BY EARLY IN THE AFTERNOON. LAL.................2. CWR.................LESS THAN 5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2700 FT AGL INCREASING TO 7500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (57700 KNOT-FT) INCREASING TO EXCELLENT (150200 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 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 LOWER 70S. WEST TO SOUTHWEST WINDS 10-20 MPH. GUSTS TO 30 MPH. $$ FORECASTER...MURRELL REQUESTED BY...KINGS PEAK WFM REASON FOR REQUEST...WILDFIRE .TAG 20100817.BULL_.01/RIW