461 FNUS73 KLSX 281122 FWSLSX Spot Forecast for Hickory Ridge Burn Unit...DNR National Weather Service Saint Louis MO 522 AM CST Sat Feb 28 2026 Forecast is based on ignition time of 0800 CST on February 28. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Today's wind and humidity forecast will be challenging, as a low pressure system will cause winds to shift constantly throughout the burn period. Winds will likely begin the day out of the east, then gradually shift to the south, and then southwest by mid to late afternoon. While speeds are expected to be mostly light, some stronger gusts will be possible, particularly in the afternoon when the southwesterlies arrive. Humidity is also expected to be relatively low, but not as low as yesterday. In spite of the lingering dry air, a few very light showers or sprinkles may reach the surface throughout the day, but likely not enough to accumulate. If rain does reach the surface, humidity is likely to rise higher than the forecast below. Persistent cloud cover may also limit mixing and inhibit smoke dispersion, which will likely be challenging already due to the shifting winds. This evening, a cold front will push through the area and switch winds to the north. Winds will remain northerly through the night and gradually become northeasterly tomorrow morning. Much cooler temperatures are expected tomorrow, but humidity will remain relatively low until widespread rain and possibly some snow arrive overnight tomorrow. .REST OF TODAY... Sky/weather.........Partly sunny (55-65 percent). Slight chance of rain in the late morning and afternoon. Chance of rain late in the afternoon. CWR.................4 percent. Chance of thunder...7 percent. Temperature.........47 at ignition...Max 70. RH..................58 percent at ignition...Min 34 percent. Eye level winds.....Highly variable wind direction through the day. East 1 to 3 mph at ignition, gradually shifting to south, then southwest by 2 pm. Maximum speeds 2 to 4 mph sustained with gusts to 8 mph between 2 and 5 pm. Wind (20 ft)........Highly variable wind direction through the day. East 4 to 7 mph at ignition, gradually shifting to south, then southwest by 2 pm. Maximum speeds 5 to 9 mph sustained with gusts to 18 mph between 2 and 5 pm. Mixing height.......1000 ft AGL at ignition...otherwise max 3200 ft AGL. Transport winds.....East around 13 mph shifting to the south late in the morning. Smoke dispersal.....Poor /1680 m/s-m/ at ignition. Max...fair /7020 m/s-m/. TIME (CST) 8 AM 10 AM NOON 2 PM 4 PM 6 PM Sky (%).........51 41 38 59 77 57 Weather cov..... S CHC S CHC S CHC S CHC S CHC Weather type....NONE RAIN RAIN RAIN RAIN RAIN Tstm cov........ CWR.............0 0 0 0 0 0 Chc of thdr (%).10 0 10 10 10 10 Temp............47 55 62 68 69 64 RH..............58 46 39 35 35 44 20 ft wind......E 5 E 5 SE 7 S 7 S 7 SW 6 20 ft wind gust.14 13 14 15 14 12 Eye level wind..E 2 E 2 SE 3 S 3 S 3 SW 3 Eye lvl wnd gst.6 6 6 7 6 6 Mix hgt (kft)...1.0 1.5 2.3 2.9 2.1 0.5 Transport wind..E 13 SE 13 S 15 S 17 SW 14 S 9 Vrate kt-ft/1K..11 16 30 44 26 4 Ventrate Cat....POOR POOR POOR FAIR POOR POOR .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent) then becoming partly cloudy (25-35 percent). Slight chance of rain early in the evening. CWR.................4 percent. Chance of thunder...8 percent. Temperature.........Min 31. RH..................Max 75 percent. Eye level winds.....North 1 to 3 mph. Wind (20 ft)........North 4 to 8 mph. Mixing height.......Min 500 ft AGL. Transport winds.....Southwest 9 to 10 mph shifting to the north 14 to 16 mph in the late evening and overnight. Smoke dispersal.....Poor (600 m/s-m). .SUNDAY... Sky/weather.........Partly sunny (55-65 percent) then becoming cloudy (85-95 percent). Slight chance of snow early in the afternoon. Slight chance of rain in the afternoon. CWR.................12 percent. Chance of thunder...2 percent. Temperature.........Max 47. RH..................Min 44 percent. Eye level winds.....Northeast 2 to 4 mph. Wind (20 ft)........Northeast 5 to 9 mph. Mixing height.......Max 2600 ft AGL. Transport winds.....Northeast 14 to 17 mph. Smoke dispersal.....Poor (2880 m/s-m) early in the morning increasing to marginal max (5290 m/s-m) in the afternoon. $$ Forecaster...19 Requested by...Erik Otto Type of request...PRESCRIBED .TAG 2604294.0/LSX .DELDT 02/28/26 .FormatterVersion 2.0.0