FNUS73 KLSX 190831 FWSLSX Spot Forecast for LLC Woodland/Glade...MDC National Weather Service Saint Louis MO 331 AM CDT Thu Mar 19 2026 Forecast is based on ignition time of 1000 CDT on March 19. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Temperatures will be well above normal today through Saturday, and Sunday for location along and south of I-44 in Missouri and south of I-70 in Illinois. Highs will ranges through the 70s to low-80s each of the next three days with cooler temperatures entering northern Missouri and west-central Illinois Sunday. Minimum RH values range from near 30 percent to 45 percent across the region with the lowest values extending from south-central Missouri through southeast Missouri. Light south-southwesterly flow is expected today with speeds around or less than 5 mph. Mixing heights generally range from 3,000 feet to 5,000 feet. Transport winds remain weak over much of the region with poor ventilation rates. The one exception is over southeast Missouri, near and northeast of the Ozarks, where slightly stronger transport winds result in fair ventilation and slightly higher mixing heights that peak just below 6,000 feet. Minimum RH values remain fairly consistent now through the weekend. However, the pick day is likely Friday with slightly better transport winds and some improvement to ventilation. Conditions return to fair/poor categories Saturday. .REST OF TODAY... Sky/weather.........Mostly sunny (25-35 percent). CWR.................1 percent. Temperature.........55 at ignition...Max 75. RH..................69 percent at ignition...Min 38 percent. Eye level winds.....Calm to light and variable. Wind (20 ft)........Winds southwest at 2 mph at ignition...otherwise Light winds. Mixing height.......500 ft AGL at ignition...otherwise max 3600 ft AGL. Transport winds.....Southwest 7 to 10 mph. Smoke dispersal.....Poor /470 m/s-m/ at ignition. Max...marginal /5090 m/s-m/. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM Sky (%).........60 27 16 13 7 2 10 14 16 17 28 33 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Temp............55 60 65 69 72 74 75 75 73 69 66 62 RH..............69 60 54 47 43 40 38 38 43 49 54 60 20 FT wind dir..SW SW SW SW SW SW SW SW S E E SE 20 FT wind spd..2 2 2 2 2 2 2 1 1 1 1 1 20 FT wind gust.8 8 8 8 7 7 6 5 5 5 4 5 Eye lvl wnd dir.SW SW SW SW SW SW SW SW S E E SE Eye lvl wnd spd.1 1 1 1 1 1 1 0 0 0 0 0 Eye lvl wnd gst.4 4 4 4 3 3 3 2 2 2 2 2 Mix hgt (kft)...0.5 0.9 1.2 2.0 2.8 3.6 3.5 3.2 0.9 0.4 0.4 0.3 Transp wind dir.SW SW SW S SW SW SW SW S S S SE Transp wind spd.7 8 8 9 9 10 9 9 6 6 6 8 Vrate kt-ft/1K..3 6 8 16 23 32 28 26 5 2 2 2 Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR .TONIGHT... Sky/weather.........Mostly clear (15-25 percent). CWR.................1 percent. Temperature.........Min 49. RH..................Max 89 percent. Eye level winds.....Calm to light and variable. Wind (20 ft)........Light winds. Mixing height.......Min 300 ft AGL. Transport winds.....South 6 to 9 mph. Smoke dispersal.....Poor (270 m/s-m). $$ Forecaster...Maples Requested by...Tim Brown Type of request...PRESCRIBED .TAG 2606383.0/LSX .DELDT 03/19/26 .FormatterVersion 2.0.0