FNUS75 KRIW 071039 FWSRIW SPOT FORECAST FOR POLE CREEK RX...IA TDC NATIONAL WEATHER SERVICE RIVERTON WY 439 AM MDT TUE SEP 7 2010 FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON SEPTEMBER 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WARMER SOUTHWEST FLOW WILL PREVAIL TODAY WITH INCREASING HIGH CLOUDS IN THE AFTERNOON. THE WARMER TEMPERATURES AND CONTINUED LOW DEWPOINTS WILL RESULT IN A LOWER MINIMUM RELATIVE HUMIDITY TREND TODAY. MOISTURE WILL BEGIN TO SURGE NORTH FROM THE GREAT BASIN TONIGHT WITH INCREASING CLOUDS AND DEWPOINTS ALONG WITH POSSIBLY AN ISOLATED SHOWER AFTER MIDNIGHT. THE SUB- TROPICAL PLUME OF MOISTURE WILL REMAIN OVER THE AREA WEDNESDAY WITH ISOLATED SHOWERS IN THE MORNING WITH A FEW THUNDERSTORMS BLOSSOMING IN THE AFTERNOON. MINIMUM RELATIVE HUMIDITY WILL TREND HIGHER WEDNESDAY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...MEUNIER .TODAY... SKY/WEATHER.........SUNNY IN THE MORNING...BECOMING PARTLY CLOUDY IN THE AFTERNOON. MAX TEMPERATURE.....63-67. MIN HUMIDITY........11-14 PERCENT. 20 FOOT WINDS.......DOWNSLOPE OR EAST SOUTHEAST 4 TO 7 MPH IN THE MORNING...BECOMING SOUTHWEST 12 TO 18 MPH WITH WITH GUSTS 25 TO 30 MPH IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH AROUND 10 MPH IN THE MORNING...BECOMING SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3100-4100 FT AGL INCREASING TO 7300-8300 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 10 TO 15 MPH BECOMING SOUTHWEST AROUND 20 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (52500 KNOT-FT) INCREASING TO EXCELLENT (151200 KNOT-FT) IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING. BECOMING MOSTLY CLOUDY AFTER MIDNIGHT. ISOLATED SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....41-46. MAX HUMIDITY........58-68 PERCENT. 20 FOOT WINDS.......SOUTH SOUTHWEST 8 TO 13 MPH WITH GUSTS TO 20 MPH THROUGH SUNSET...BECOMING DOWNSLOPE OR EAST SOUTHEAST AFTER MIDNIGHT. RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......7300-8300 FT AGL DECREASING TO 3100-4100 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTH 16 TO 25 MPH. SMOKE DISPERSAL.....EXCELLENT (156100 KNOT-FT) DECREASING TO FAIR (59400 KNOT-FT) AFTER MIDNIGHT. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY. ISOLATED RAIN SHOWERS THROUGH THE DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....64-67. MIN HUMIDITY........25-30 PERCENT. 20 FOOT WINDS.......DOWNSLOPE OR EAST SOUTHEAST 4 TO 7 MPH IN THE MORNING...BECOMING SOUTHWEST 15 TO 20 MPH WITH WITH GUSTS 30 TO 35 MPH IN THE AFTERNOON. GUSTY ERRATIC WIND NEAR THUNDERSTORMS IN THE AFTERNOON. RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH SHIFTING TO THE SOUTHWEST AROUND 30 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.10 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 5500-6500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 20 MPH INCREASING TO SOUTHWEST 30 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....GOOD (60600 KNOT-FT) INCREASING TO VERY GOOD (145000 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN ISOLATED SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. SOUTH WINDS AROUND 13 MPH. .THURSDAY...MOSTLY CLOUDY WITH SCATTERED SHOWERS...THUNDERSTORMS AND SNOW SHOWERS. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 12 MPH. .FRIDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS...THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...MEUNIER REQUESTED BY...TIDC REASON FOR REQUEST...PRESCRIBED .TAG 20100907.POLEC.01/RIW