FNUS75 KRIW 161225 FWSRIW SPOT FORECAST FOR BULL...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 625 AM MDT MON AUG 16 2010 FORECAST IS BASED ON REQUEST TIME OF 1710 MDT ON AUGUST 15. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A DISTURBANCE MOVING ACROSS THE AREA WILL RESULT IN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS THROUGH THIS EVENING. THE ADDITIONAL CLOUD COVER AND ASSOCIATED THUNDERSTORMS SHOULD RESULT IN SLIGHTLY HIGHER...MINIMUM RELATIVE HUMIDITY TODAY. LIGHT WINDS THIS MORNING ARE EXPECTED TO BECOME WESTERLY BY EARLY AFTERNOON...BUT COULD BE HIGHLY VARIABLE IN BOTH DIRECTION AND SPEED DUE TO POSSIBLE SHOWER AND THUNDERSTORM ACTIVITY TODAY. DRY CONDITIONS WILL RETURN FOR TUESDAY...WITH BREEZY WESTERLY WINDS DEVELOPING TUESDAY AFTERNOON. ANOTHER CHANCE FOR THUNDERSTORMS WILL RETURN WEDNESDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MURRELL .TODAY... SKY/WEATHER.........PARTLY CLOUDY (40 PERCENT) BECOMING MOSTLY CLOUDY (80 PERCENT) BY EARLY AFTERNOON. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS TODAY. MAX TEMPERATURE.....74-78. MIN HUMIDITY........19-24 PERCENT. WIND (20 FT)........UPSLOPE/UPVALLEY 3-6 MPH...BECOMING WEST 4-8 MPH AROUND 1400. GUSTS TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR SHOWERS AND THUNDERSTORMS. RIDGE TOP WINDS.....LIGHT AND VARIABLE...BECOMING WEST SOUTHWEST 5-10 MPH BETWEEN 1000 AND 1200...THEN WEST NORTHWEST 8-12 MPH BY AROUND 1500. GUSTS TO 20 MPH. MUCH HIGHER GUSTS POSSIBLE DUE TO THUNDERSTORMS. LAL.................3 CWR.................5 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 8500 FT AGL BY AFTERNOON. TRANSPORT WINDS.....SOUTH SOUTHEAST 5-10 MPH...BECOMING WEST AROUND 10 MPH BY NOON...THEN WEST NORTHWEST AROUND 15 MPH BY 1500. SMOKE DISPERSAL.....POOR INCREASING TO VERY GOOD BY AFTERNOON. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (50 PERCENT) BECOMING MOSTLY CLEAR (20 PERCENT) BY 2100. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING. MIN TEMPERATURE.....45-50. MAX HUMIDITY........AROUND 45 PERCENT. WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 3-6 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....WEST 5-10 MPH. LAL.................2 UNTIL 2100...THEN 1. CWR.................1 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5400-6400 FT AGL DECREASING TO 800 FT AGL BY AROUND 2100. TRANSPORT WINDS.....WEST 5-10 MPH. SMOKE DISPERSAL.....GOOD (77400 KNOT-FT) DECREASING TO POOR (1500 KNOT-FT) BY 2100. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). MAX TEMPERATURE.....74-78. MIN HUMIDITY........AROUND 15 PERCENT. WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND 10 MPH AROUND NOON. GUSTS TO 20 MPH. RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH BECOMING WEST AROUND 15 MPH BY AROUND NOON. GUSTS TO 30 MPH. LAL.................1. CWR.................ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 8500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 10-15 MPH INCREASING TO 20 MPH BY AFTERNOON. SMOKE DISPERSAL.....FAIR (57700 KNOT-FT) INCREASING TO VERY GOOD (144900 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70. WEST SOUTHWEST 10-15 MPH. .THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. WEST NORTHWEST WIND 10-15 MPH. .FRIDAY...PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MURRELL REQUESTED BY...KINGS PEAK WFM REASON FOR REQUEST...WILDFIRE .TAG 20100815.BULL_.01/RIW