FNUS75 KRIW 071420 FWSRIW SPOT FORECAST FOR DUNCAN...CDC NATIONAL WEATHER SERVICE RIVERTON WY 820 AM MDT MON SEP 7 2009 FORECAST IS BASED ON REQUEST TIME OF 0747 MDT ON SEPTEMBER 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...CLOUDS WILL BE ON THE INCREASE TODAY WITH SHOWERS AND THUNDERSTORMS DEVELOPING OVER OR NEAR THE FIRE AFTER 1100 AM. THE STORMS WILL HAVE GUSTY WIND TO 40 MPH AND BRIEF HEAVY RAIN. STORMS WILL TEND TO FORM AND MOVE OFF TO THE NORTHEAST AND THEN WILL REFORM OVER THE NEARBY MOUNTAINS THIS AFTERNOON AND EVENING. A FEW SHOWERS WILL LINGER AFTER SUNSET IN THE AREA. BREEZY CONDITIONS WILL OCCUR TODAY AND THIS EVENING WITH A WEST TO SOUTHWEST WIND. A BREEZY NORTH WIND WILL DEVELOP AFTER MIDNIGHT TONIGHT AS A COLD FRONT MOVES THROUGH THE AREA. TUESDAY WILL BE COOLER WITH ISOLATED MORNING SHOWERS ONLY. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...AR .TODAY... SKY/WEATHER.........PARTLY CLOUDY UNTIL NOON. THEN BECOMING MOSTLY CLOUDY. ISOLATED RAIN SHOWERS THIS MORNING. SCATTERED RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....70-75. MIN HUMIDITY........26-29 PERCENT. 20 FOOT WINDS.......BECOMING WEST TO SOUTHWEST AT 8 TO 13 MPH AFTER 1200 PM. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....BECOMING WEST TO SOUTHWEST AT 12 TO 17 MPH WITH GUSTS TO 20 MPH AFTER 1200 PM. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.4 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 6900 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH. SMOKE DISPERSAL.....INCREASING TO VERY GOOD BY 200 PM. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING. ISOLATED RAIN SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 50. MAX HUMIDITY........70-75 PERCENT. 20 FOOT WINDS.......WEST AT 7 TO 12 MPH UNTIL 800 PM...THEN WEST AT 4 TO 9 MPH...THEN NORTH AT 6 TO 11 MPH AFTER 300 AM WITH COLD FRONT PASSAGE. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. RIDGE TOP WINDS.....WEST 10 TO 15 MPH UNTIL 800 PM...THEN WEST AT 5 TO 10 MPH...THEN NORTH AT 10 TO 15 MPH WITH GUSTS TO 20 MPH AFTER 300 AM WITH COLD FRONT PASSAGE. LAL.................2 UNTIL 2400...THEN 1. CHC OF WETTING RAIN.4 PERCENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......DECREASING TO 700 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....WEST AT 20 MPH...BECOMING NORTH AT 15 MPH AFTER 300 AM. SMOKE DISPERSAL.....DECREASING TO POOR AFTER MIDNIGHT. .TUESDAY... SKY/WEATHER.........CLOUDY IN THE MORNING WITH ISOLATED RAIN SHOWERS IN THE MORNING. MAX TEMPERATURE.....63-68. MIN HUMIDITY........27-32 PERCENT. 20 FOOT WINDS.......NORTH AT 5 TO 10 MPH. RIDGE TOP WINDS.....NORTH AT 10 TO 15 MPH. LAL.................1. CHC OF WETTING RAIN.3 PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......INCREASING TO 4000 FT AGL BY 200 PM. TRANSPORT WINDS.....NORTH AROUND 13 MPH. SMOKE DISPERSAL.....POOR...INCREASING TO FAIR BY 200 PM. .FORECAST DAYS 3 THROUGH 5... .TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN 10 MPH. .THURSDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH. .FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...ROSS REQUESTED BY...BOB EVANS REASON FOR REQUEST...WILDFIRE .TAG 20090907.DUNCA.01/RIW