FNUS75 KRIW 070854 FWSRIW SPOT FORECAST FOR LOWER GROS VENTRE RX...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 254 AM MDT THU OCT 7 2010 FORECAST IS BASED ON IGNITION TIME OF 1905 MDT ON OCTOBER 06. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... THE PACIFIC STORM OVER CALIFORNIA AND GREAT BASIN WILL SLOWLY LIFT NORTHEAST TODAY AND FRIDAY. THIS WILL RESULT IN THE CONTINUATION OF HIGH RELATIVE HUMIDITY AND CHANCES FOR PRECIPITATION. ISOLATED SHOWERS ARE POSSIBLE...MAINLY THIS AFTERNOON. SHOWERS ARE EXPECTED TO INCREASE IN COVERAGE THIS EVENING...WITH SCATTERED TO LOCALLY NUMEROUS SHOWERS TONIGHT AND FRIDAY. ENOUGH COLD AIR WILL MOVE INTO THE AREA WITH SNOW LEVELS DROPPING DOWN TO AROUND 8000 FEET LATE TONIGHT. THIS SLOW MOVING STORM SYSTEM WILL FINALLY EXIT LATE FRIDAY/FRIDAY NIGHT...WITH DRY AND WARMER CONDITIONS EXPECTED SATURDAY AND SUNDAY. ANOTHER STORM SYSTEM...BUT MUCH MORE PROGRESSIVE...WILL AFFECT NORTHWESTERN WYOMING MONDAY AND MONDAY NIGHT...BRINGING ANOTHER CHANCE FOR SOME PRECIPITATION. ...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 IN THE AFTERNOON (85 PERCENT) ISOLATED RAIN SHOWERS. THUNDERSTORM POSSIBLE IN THE AFTERNOON. MAX TEMPERATURE.....58-62 AT 7000 FEET. 48-52 AT 9000 FEET. MIN HUMIDITY........40-45 PERCENT. 20 FOOT WINDS.......EAST SOUTHEAST 3-6 MPH...BECOMING SOUTH SOUTHWEST 5-10 MPH BETWEEN NOON AND 1400. GUSTS UP TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR ANY THUNDERSTORM IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH SOUTHEAST AROUND 15 MPH SHIFTING TO THE SOUTH SOUTHWEST AROUND 10 MPH. 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.......1200 FT AGL INCREASING TO 4500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH SOUTHEAST 15-20 MPH SHIFTING TO THE SOUTH SOUTHWEST 10-15 MPH. SMOKE DISPERSAL.....POOR INCREASING TO FAIR (50700 KNOT-FT). .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (85+ PERCENT). SCATTERED SHOWERS. ISOLATED THUNDERSTORMS THROUGH MIDNIGHT. SNOW POSSIBLE ABOVE 8000 FEET AFTER MIDNIGHT. MIN TEMPERATURE.....35-40 AT 7000 FT. 30-35 AT 9000 FT. MAX HUMIDITY........90+ PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3-6 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS THROUGH MIDNIGHT. RIDGE TOP WINDS.....SOUTH TO SOUTHWEST 5-10 MPH. LAL.................2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.20 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3500 FT AGL DECREASING TO 500 FT AGL BY MIDNIGHT. TRANSPORT WINDS.....SOUTH TO SOUTHWEST 5-10 MPH. SMOKE DISPERSAL.....POOR. .FRIDAY... SKY/WEATHER.........CLOUDY (90 PERCENT). SCATTERED SHOWERS. SNOW POSSIBLE ABOVE 8000 FEET. MAX TEMPERATURE.....45-50 AT 7000 FT. 35-40 AT 9000 FEET. MIN HUMIDITY........55-60 PERCENT. 20 FOOT WINDS.......EAST SOUTHEAST 3-6 MPH...BECOMING SOUTHWEST 3-6 MPH AROUND NOON. RIDGE TOP WINDS.....WEST AROUND 10 MPH. LAL.................1. CHC OF WETTING RAIN.20 PERCENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3500 FT AGL. TRANSPORT WINDS.....WEST AROUND 10 MPH. SMOKE DISPERSAL.....POOR (25800 KNOT-FT). .FORECAST DAYS 3 THROUGH 5... .FRIDAY NIGHT...CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE LOWER TO MID 30S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. LOWS AROUND 30. HIGHS 55-60. WINDS GENERALLY LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH. .COLUMBUS DAY...PARTLY CLOUDY. CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS AROUND 30. HIGHS AROUND 50. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MURRELL REQUESTED BY...ANDREA REASON FOR REQUEST...PRESCRIBED .TAG 20101006.LOWER.01/RIW