FNUS73 KILX 201110 FWSILX Spot Forecast for Irene M. Cull Prairie Annual Prescribed Burn...USDA-REE-ARS-MWA-NCAUR National Weather Service Lincoln IL 610 AM CDT Fri Mar 20 2026 Forecast is based on ignition time of 0900 CDT on March 21. If conditions become unrepresentative...contact the National Weather Service. Please contact our office at (217) 732-3089 if you have questions or concerns with this forecast. .DISCUSSION... Dry and warm conditions are expected today. The arrival of a front will result in winds gradually turning from the south to the west through the day. Although wind speeds will be 10-15 mph, ventilation rates will be on the poor side. .SATURDAY... Sky/weather.........Sunny (10-20 percent). Chance of pcpn......0 percent. Chance of thunder...0 percent. Temperature.........49 at ignition...Max 78. RH..................83 percent at ignition...Min 46 percent. Wind (20 ft)........Winds south at 7 mph at ignition...otherwise South winds 5 to 7 mph. Mixing height.......1100 ft AGL at ignition...otherwise 2700 ft AGL. Transport winds.....South 12 to 14 mph shifting to the southwest 14 to 15 mph late in the afternoon. Smoke dispersal.....Poor /10500 knot-ft/ at ignition. Max...Poor /35500 knot-ft/. TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM Sky (%).........22 16 13 8 7 Weather cov..... Weather type....NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 Temp............49 57 67 73 74 RH..............83 72 56 48 46 20 ft wind......S 7 S 7 S 9 SW 9 SW 9 20 ft wind gust.14 14 16 16 16 Mix hgt (ft)....1100 1400 2200 2500 2000 Transport wind..S 12 S 12 SW 14 SW 15 SW 14 Vrate kt-ft/1K..11 14 26 32 25 Ventrate Cat....POOR POOR POOR POOR POOR $$ Forecaster...Geelhart Requested by...Nathan Kemp Type of request...PRESCRIBED .TAG 2605943.0/ILX .DELDT 03/20/26 .FormatterVersion 2.0.0 .EMAIL nathan.kemp@usda.gov