FNUS73 KLSX 201701 FWSLSX Spot Forecast for Davids Recycling Fire...Callaway County EMA National Weather Service Saint Louis MO 1201 PM CDT Fri Mar 20 2026 Forecast is based on forecast start time of 1200 CDT on March 20. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Breezy winds moving from west to east will persist for much of the afternoon, with deep mixing expected as well. This will lead to good ventilation and efficient smoke dispersion. Winds will slowly weaken and shift this evening, and will begin to move from northwest to southeast. Overnight, winds will become very light and variable, but mostly out of the north. Mixing heights will also drop, which means that smoke will not disperse as quickly as it will during the day today. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. Chance of thunder...1 percent. Temperature.........78 at forecast start...Max 85. RH..................36 percent at forecast start...Min 26 percent. Surface winds (mph).West winds 9 to 11 mph. Gusts up to 20 mph late in the afternoon. Shifting to the northwest at 5 to 10 mph Mixing height.......1800 ft AGL at forecast start...otherwise max 4600 ft AGL. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P Sky (%).........2 1 2 2 4 10 31 20 31 30 27 22 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............78 81 83 85 85 84 82 76 70 67 65 62 RH..............36 32 30 26 26 27 30 37 44 49 52 58 Surface wnd dir.W W W W W W NW NW N N N N Surface wnd spd.10 11 11 11 10 9 7 6 6 5 5 5 Surface wnd gst.18 20 17 18 20 20 14 10 9 9 10 10 Mix hgt (kft)...1.8 2.5 3.6 3.8 4.6 3.9 0.8 0.4 0.4 0.4 0.4 0.4 $$ Forecaster...19 Requested by...Michelle Kidwell Type of request...HAZMAT .TAG 2606802.0/LSX .DELDT 03/20/26 .FormatterVersion 2.0.0