Suppression Forecast
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
855 FNUS73 KLSX 191239 FWSLSX Spot Forecast for Mark Twain Lake...U.S. Army Corps of Engineers National Weather Service Saint Louis MO 739 AM CDT Thu Sep 19 2024 Forecast is based on ignition time of 1100 CDT on September 19. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Hot and dry conditions can be expected for a majority of the day, with some increasing cloud cover possible late in the afternoon. Humidity is expected to be moderate to low, and there will be a southerly breeze that will be mostly light. Deep mixing can be expected as well, which will promote some afternoon wind gusts to near 15 mph. There is a slight chance for a stray shower or thunderstorm during the evening and overnight hours, but this falls beyond the prescribed burn time listed in this spot forecast. Chances for wetting rain during the evening and overnight period are near 20 percent. .REST OF TODAY... Sky/weather.........Sunny (20-30 percent). Chance of pcpn......0 percent. LAL.................No Tstms. Temperature.........83 at ignition...Max 91. RH..................55 percent at ignition...Min 44 percent. Wind (20 ft)........South winds 5 to 8 mph with gusts to 15 mph. Eye level winds.....South winds 3 to 4 mph with gusts to 9 mph. Haines Index........4 or low potential for large plume dominated fire growth at ignition...max 5. Mixing height.......3600 ft AGL at ignition...otherwise max 5700 ft AGL. Transport winds.....South 12 to 13 mph. Smoke dispersal.....Fair /6210 m/s-m/ at ignition. Max...good /9880 m/s-m/. TIME (CDT) 11 AM 1 PM 3 PM 5 PM 7 PM 9 PM Sky (%).........13 24 26 34 21 18 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 0 10 LAL.............1 1 1 1 1 1 Temp............83 88 91 90 87 79 RH..............55 46 44 45 49 64 20 ft wind......S 6 S 7 S 7 S 7 S 5 S 5 20 ft wind gust.12 13 15 15 13 12 Eye level wind..S 3 S 3 S 3 S 3 S 2 S 2 Eye lvl wnd gst.6 6 6 6 6 6 Mix hgt (kft)...3.6 5.4 5.6 4.9 0.6 0.5 Transport wind..S 13 S 13 S 12 S 13 S 13 S 14 Haines index....4 5 5 5 4 4 Vrate kt-ft/1K..40 60 56 54 7 6 Ventrate Cat....POOR FAIR FAIR FAIR POOR POOR $$ Forecaster...19 Requested by...Aaron Eckelkamp Type of request...PRESCRIBED .TAG 2422712.0/LSX .DELDT 09/19/24 .FormatterVersion 2.0.0