FNUS75 KRIW 051242 FWSRIW SPOT FORECAST FOR POLE CREEK...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 642 AM MDT SUN SEP 5 2010 FORECAST IS BASED ON IGNITION TIME OF 2145 MDT ON SEPTEMBER 04. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WIND WILL BE THE MAIN FORECAST ISSUE AGAIN TODAY. A COLD FRONT WILL MOVE THROUGH THE BURN AREA BETWEEN 1200 AND 1400. THE WIND WILL SHIFT FROM WEST SOUTHWEST TO WEST NORTHWEST. THE FRONT WILL BE A DRY FRONT WITH SOME INCREASE IN HUMIDITY AS TEMPERATURES DECLINE AFTER FRONTAL PASSAGE. IT WILL REMAIN WINDY ON THE RIDGE TOPS TONIGHT WITH A GRADUAL DECREASE IN SPEEDS AFTER MIDNIGHT. MONDAY LOOKS DRY AND COOL WITH LESS WIND. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...AR .TODAY... SKY/WEATHER.........MOSTLY SUNNY THIS MORNING. PARTLY CLOUDY THIS AFTERNOON. MAX TEMPERATURE.....60-65. MIN HUMIDITY........15-20 PERCENT. 20 FOOT WINDS.......VARIABLE DIRECTION AT 4 TO 7 MPH UNTIL 1000. THEN WEST SOUTHWEST AT 15 TO 20 MPH WITH GUSTS AROUND 25 MPH AFTER 1000. WEST NORTHWEST WIND 25 TO 30 MPH WITH GUSTS TO 40 MPH AFTER 1300 WITH FRONTAL PASSAGE. RIDGE TOP WINDS.....WEST SOUTHWEST AT 8 TO 13 MPH UNTIL 1000. THEN WEST SOUTHWEST AT 20 TO 25 MPH WITH GUSTS AROUND 30 MPH AFTER 1000. WEST NORTHWEST WIND 30 TO 35 MPH WITH GUSTS TO AROUND 45 MPH AFTER 1300 WITH FRONTAL PASSAGE. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 7000 FT AGL BY AFTERNOON. TRANSPORT WINDS.....WEST AT 20 MPH THIS MORNING. WEST AT 30 MPH AFTER 1300. SMOKE DISPERSAL.....INCREASING TO EXCELLENT BY 1300. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....32-37. MAX HUMIDITY........65-70 PERCENT. 20 FOOT WINDS.......NORTHWEST 15 TO 20 MPH UNTIL 2400 WITH GUSTS 25 TO 30 MPH...THEN DECREASING TO 6 TO 10 MPH AFTER MIDNIGHT. RIDGE TOP WINDS.....NORTHWEST 25 TO 30 MPH WITH GUSTS TO 40 MPH UNTIL 2400...THEN DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO 2000 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH...DECREASING TO 15 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....EXCELLENT...DECREASING TO FAIR BY MIDNIGHT... DECREASING TO POOR BY 0300. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY. MAX TEMPERATURE.....50-55. MIN HUMIDITY........25-30 PERCENT. 20 FOOT WINDS.......WEST NORTHWEST AT 5 TO 9 MPH IN THE MORNING. WEST AT 10 TO 15 MPH IN THE AFTERNOON. RIDGE TOP WINDS.....WEST NORTHWEST AT 7 TO 12 MPH IN THE MORNING. WEST AT 15 TO 20 MPH IN THE AFTERNOON WITH GUSTS TO 25 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 3700-4700 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 15 TO 20 MPH. SMOKE DISPERSAL.....POOR...INCREASING TO GOOD DURING THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH UNTIL SUNSET...THEN DECREASING TO 5 TO 10 MPH... WIND BECOMING SOUTHEAST 5 TO 10 MPH LATE IN THE NIGHT. .TUESDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S. SOUTHWEST WINDS 10 TO 15 MPH IN THE AFTERNOON. .WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. SOUTHWEST WINDS 15 TO 20 MPH IN THE AFTERNOON. .THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 40 TO 45. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS 15 TO 20 MPH. $$ FORECASTER...ROSS REQUESTED BY...TIDC REASON FOR REQUEST...PRESCRIBED .TAG 20100904.POLEC.03/RIW