FNUS75 KRIW 030330 FWSRIW SPOT FORECAST FOR BULL FIRE...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 930 PM MDT SAT OCT 2 2010 FORECAST IS BASED ON REQUEST TIME OF 2031 MDT ON OCTOBER 02. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL HOLD FOR ONE MORE DAY ALLOWING FOR DRY CONDITIONS AND UNSEASONABLY WARM TEMPERATURES TODAY. AN APPROACHING TROUGH OF LOW PRESSURE WILL ARRIVE ON MONDAY BRINGING COOLER TEMPERATURES AND A CHANCE OF PRECIPITATION MONDAY THROUGH TUESDAY WITH THE BEST CHANCE MONDAY NIGHT. EXPECT SOUTHWEST WINDS TO INCREASE MONDAY AHEAD OF THIS SYSTEM. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...LIPSON .TODAY... SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). AREAS OF SMOKE. MAX TEMPERATURE.....84 AT 6500 FEET. 74 AT 8500 FEET. MIN HUMIDITY........10 PERCENT AT 6500 FEET AND 15 PERCENT AT 8500 FEET. 20 FOOT WINDS.......UPSLOPE FROM THE EAST AT 4 TO 6 MPH BY 0830. THEN LIGHT AND VARIABLE BY 1200. WINDS DOWNSLOPE FROM THE NORTH AT 5 TO 10 MPH BY 1430. RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE SOUTH LATE IN THE AFTERNOON. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2300-3300 FT AGL INCREASING TO 7400-8400 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 12 TO 14 MPH SHIFTING TO THE SOUTH AROUND 12 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (27300 KNOT-FT) INCREASING TO GOOD (83300 KNOT-FT) IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT). MIN TEMPERATURE.....39-43. MAX HUMIDITY........67-75 PERCENT. 20 FOOT WINDS.......EAST SOUTHEAST AT 3 TO 5 MPH. WINDS BECOMING SOUTHWEST BY 0900 AT 4 TO 7 MPH. RIDGE TOP WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST IN THE LATE EVENING AND OVERNIGHT. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4900-5900 FT AGL DECREASING TO 400 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTH AROUND 14 MPH SHIFTING TO THE SOUTHEAST 10 TO 12 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....FAIR (58700 KNOT-FT) DECREASING TO POOR (3700 KNOT-FT) AFTER MIDNIGHT. .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED RAIN SHOWERS AFTER 1600 ALONG WITH A POSSIBLE THUNDERSTORM. MAX TEMPERATURE.....74 AT 6500 FEET AND 64 AT 8500 FEET. MIN HUMIDITY........20 PERCENT AT 6500 FEET AND 30 PERCENT AT 8500 FEET. 20 FOOT WINDS.......UPSLOPE FROM THE EAST AT 3 TO 5 MPH BY 0830. AFTER 1200 SOUTHWEST 6 TO 12 MPH WITH HIGHER GUSTS LATER IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY POSSIBLE THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST AROUND 20 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.13 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1600-2600 FT AGL INCREASING TO 5000-6000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 13 TO 22 MPH. SMOKE DISPERSAL.....POOR (31600 KNOT-FT) INCREASING TO GOOD (87700 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .MONDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING...THEN SCATTERED SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. SCATTERED SHOWERS AND SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...LIPSON REQUESTED BY...CHRIS VERO REASON FOR REQUEST...WILDFIRE .TAG 20101002.BULLF.01/RIW