FNUS73 KUNR 231856 FWSUNR SPOT FORECAST FOR SUNDANCE RX 21...USFS NATIONAL WEATHER SERVICE RAPID CITY SD 1256 PM MDT SAT OCT 23 2010 FORECAST IS BASED ON IGNITION TIME OF 1305 MDT ON OCTOBER 23. IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY. .DISCUSSION... THE WRAP AROUND MOISTURE FROM A LARGE SLOW MOVING TROUGH WILL CONTINUE TO MOVE EASTWARD ACROSS THE CENTRAL PLAINS THIS AFTERNOON SUPPORING A FEW LIGHT SHOWERS IN THE BURN AREA BUT PRECIPITATION ACCUMULATIONS SHOULD BE MINIMAL. A GENERAL DRYING TREND IS IN STORE FOR TONIGHT BUT SURFACE HUMIDITIES WILL JUMP BACK UP TO NEAR 100 PERCENT PRETTY QUICKLY AS THE CLOUD COVER DISSIPATES. A SLIGHT IMPROVEMENT IS FORECAST FOR BURNING CONDITIONS ON SUNDAY WITH FAIR SKIES LIGHT WINDS AND SOMEWHAT LOWER HUMIDITIES. THIS WILL BE SHORT LIVED HOWEVER WITH ANOTHER WEATHER SYSTEM MOVING INTO THE AREA SUNDAY NIGHT. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING. TEMPERATURE.........MIN 35. RH..................MAX 100 PERCENT. WIND (20 FT)........SOUTH WINDS 7 TO 10 MPH. CWR.................12 PERCENT DECREASING AFTER MIDNIGHT. LAL.................1. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......100 TO 600 FT AGL. TRANSPORT WINDS.....WEST 5 TO 9 MPH. SMOKE DISPERSAL.....POOR. .SUNDAY... SKY/WEATHER.........PARTLY SUNNY. TEMPERATURE.........MAX 57. RH..................MIN 42 PERCENT. WIND (20 FT)........SOUTH WINDS 7 TO 16 MPH. CWR.................0 PERCENT. LAL.................1. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4800 TO 5800 FT AGL. TRANSPORT WINDS.....SOUTHWEST 7 TO 15 MPH INCREASING TO 17 TO 23 MPH EARLY IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR INCREASING TO GOOD IN THE AFTERNOON...THEN DECREASING TO POOR LATE IN THE AFTERNOON. $$ FORECASTER...DC REQUESTED BY...USFS TYPE OF REQUEST...PRESCRIBED .TAG 20101023.SUNDA.01/UNR