FNUS75 KRIW 040053 FWSRIW SPOT FORECAST FOR WILLOW DRAW WF...USFS BTF NATIONAL WEATHER SERVICE RIVERTON WY 653 PM MDT SUN OCT 3 2010 FORECAST IS BASED ON REQUEST TIME OF 1726 MDT ON OCTOBER 03. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A RIDGE OF HIGH PRESSURE THAT HAS BROUGHT UNSEASONABLY WARM AND DRY WEATHER TO THE AREA WILL CONTINUE TO SLIDE EAST INTO THE PLAINS TONIGHT. A PACIFIC STORM SYSTEM SLIDING DOWN THE WEST COAST WILL GET CUTOFF OVER SOUTHERN CALIFORNIA BY TUESDAY...EVENTUALLY LIFTING OUT ACROSS THE CENTRAL ROCKIES FRIDAY AND SATURDAY. A MOIST AND COOLER SOUTHERLY FLOW WILL PREVAIL AHEAD OF THIS SYSTEM ALONG WITH MAINLY SPOTTY SHOWERS AND POSSIBLY AN ISOLATED THUNDERSTORM MONDAY AND TUESDAY. HOWEVER...THE LIKELIHOOD OF RECEIVING A WETTING RAIN REMAINS SLIM. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MEUNIER .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). ISOLATED SHOWERS POSSIBLE TOWARD DAWN. MIN TEMPERATURE.....AROUND 40. MAX HUMIDITY........57-62 PERCENT. 20 FOOT WINDS.......BECOMING DOWNSLOPE OR EAST 4-7 MPH. RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH INCREASING TO 10 TO 15 MPH AFTER MIDNIGHT. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......NEAR 2000 FEET AGL DECREASING TO BELOW 500 FEET AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTH TO SOUTHWEST 5 TO 10 MPH. SMOKE DISPERSAL.....POOR. .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). ISOLATED RAIN SHOWERS THROUGH THE DAY WITH A THUNDERSTORM POSSIBLE IN THE AFTERNOON. MAX TEMPERATURE.....61-64. MIN HUMIDITY........28-33 PERCENT. 20 FOOT WINDS.......EAST OR DOWNSLOPE 4 TO 7 MPH IN THE MORNING BECOMING SOUTHWEST 5-9 MPH WITH GUSTS TO 15 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH AROUND 10 MPH IN THE MORNING BECOMING SOUTH SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900-2900 FT AGL INCREASING TO 4900-5900 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH SOUTHWEST 15 TO 20 MPH. SMOKE DISPERSAL.....POOR (32200 KNOT-FT) INCREASING TO GOOD (86300 KNOT-FT) IN THE AFTERNOON. .MONDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED RAIN SHOWERS THROUGH THE NIGHT WITH A THUNDERSTORM POSSIBLE THROUGH DUSK. MIN TEMPERATURE.....36-39. MAX HUMIDITY........73-78 PERCENT. 20 FOOT WINDS.......SOUTHWEST 5-9 MPH BECOMING DOWNSLOPE OR EAST 4-7 MPH AT DUSK. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE EVENING. RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE SOUTH AROUND 5 MPH AFTER MIDNIGHT. LAL.................2 UNTIL 2000...THEN 1. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3200-4200 FT AGL DECREASING TO 300-1100 FT AGL AFTER SUNSET. TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH SHIFTING TO THE SOUTH AROUND 10 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....GOOD (61300 KNOT-FT) DECREASING TO POOR (7000 KNOT-FT) AFTER MIDNIGHT. .TUESDAY... SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) ISOLATED RAIN SHOWERS. MAX TEMPERATURE.....64-67. MIN HUMIDITY........34-37 PERCENT. 20 FOOT WINDS.......EAST OR DOWNSLOPE 4-7 MPH IN THE MORNING BECOMING WEST SOUTHWEST 5-9 MPH IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH. LAL.................1. CHC OF WETTING RAIN.5 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900-2900 FT AGL INCREASING TO 6100-7100 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 10 TO 15 MPH. SMOKE DISPERSAL.....POOR (20300-23500 KNOT-FT). .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...MOSTLY CLOUDY. ISOLATED SHOWERS THROUGH THE NIGHT. LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MEUNIER REQUESTED BY...ICT5 REASON FOR REQUEST...WILDFIRE .TAG 20101003.WILLO.01/RIW