FNUS73 KLSX 231855 FWSLSX Spot Forecast for Adams Fire...USDA - USFS National Weather Service Saint Louis MO 155 PM CDT Tue Apr 23 2024 Forecast is based on forecast start time of 1400 CDT on April 23. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... A band of showers with scattered thunderstorms will move into the area from the northwest between 3-5 pm. Less than one- quarter of an inch is likely with this band, but the relative humidity will increase. Winds will be erratic around thunderstorms. A cold front will move through the fire area causing winds to shift from the northwest around 5 pm. There will be chance of showers (20-40%) through early this evening and then dry weather is expected through Wednesday. Winds will generally be light tonight and on Wednesday and mixing levels will climb to almost 6000ft AGL on Wednesday. .REST OF TODAY... Sky/weather.........Cloudy (85-95 percent). Showers likely and slight chance of thunderstorms. Chance of pcpn......60 percent. LAL.................No Tstms until 1600, then 9-15 strikes. Temperature.........73 at forecast start...Max 73. RH..................41 percent at forecast start...Min 40 percent. Wind (20 ft)........Winds southwest at 10 mph at forecast start...otherwise Southwest winds 8 to 10 mph with gusts to around 19 mph shifting to the west around 7 mph late in the afternoon. Gusty and erratic winds expected near thunderstorms late in the afternoon. Eye level winds.....Winds will be around 2 mph using a adjustment factor of 0.2. Haines Index........4 or low potential for large plume dominated fire growth at forecast start...max 4. Mixing height.......5300 ft AGL at forecast start...otherwise max 5300 ft AGL. Transport winds.....West 20 to 23 mph shifting to the northwest around 15 mph late in the afternoon. Smoke dispersal.....Excellent /16750 m/s-m/ at forecast start. Max...excellent /16750 m/s-m/. TIME (CDT) 2 PM 4 PM 6 PM 8 PM 10 PM MIDNGT Sky (%).........91 91 92 84 62 36 Weather cov.....S CHC CHANCE LIKELY CHANCE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE Tstm cov........ S CHC S CHC S CHC CWR.............20 50 60 30 10 0 LAL.............2 3 3 3 1 1 Temp............73 71 66 60 57 53 RH..............41 49 61 72 80 89 20 ft wind......SW 10 W 8 W 6 NW 4 NW 3 NW 3 20 ft wind gust.18 18 14 8 5 4 Eye level wind..SW 5 W 4 W 3 NW 2 NW 1 NW 1 Eye lvl wnd gst.8 8 6 4 2 2 Mix hgt (kft)...5.3 4.1 1.7 0.9 0.5 0.4 Transport wind..SW 23 W 20 N 14 NW 8 NW 7 NW 6 Haines index....4 4 2 2 4 4 Vrate kt-ft/1K..107 69 20 6 3 2 Ventrate Cat....VYGD GOOD POOR POOR POOR POOR .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent) then becoming partly cloudy (25-35 percent). Rain showers likely early in the evening. Slight chance of thunderstorms early in the evening. Chance of rain showers early in the evening. Chance of pcpn......60 percent. LAL.................9-15 strikes until 2100, then No Tstms. Temperature.........Min 45. RH..................Max 96 percent. Wind (20 ft)........Northwest winds 5 to 6 mph early in the evening becoming light. Gusty and erratic winds expected near thunderstorms early in the evening. Eye level winds.....Light winds. Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. Mixing height.......Min 400 ft AGL. Transport winds.....Northwest 6 to 14 mph. Smoke dispersal.....Poor (350 m/s-m). .WEDNESDAY... Sky/weather.........Sunny (10-20 percent). Chance of pcpn......0 percent. LAL.................No Tstms. Temperature.........Max 73. RH..................Min 28 percent. Wind (20 ft)........Light winds becoming north around 5 mph late in the morning, then becoming light late in the afternoon. Eye level winds.....Light winds. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. Mixing height.......Max 5900 ft AGL. Transport winds.....North 6 to 12 mph. Smoke dispersal.....Poor (360 m/s-m) early in the morning increasing to fair max (6320 m/s-m) in the afternoon. $$ Forecaster...Britt Requested by...Patric Marlow Type of request...WILDFIRE .TAG 2412022.0/LSX .DELDT 04/23/24 .FormatterVersion 2.0.0