FNUS72 KCHS 201832 FWSCHS Spot Forecast for C76/78 Planning...USFS National Weather Service Charleston SC 232 PM EDT Fri Mar 20 2026 Forecast is based on ignition time of 1000 EDT on March 21. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... High pressure will dominate over the burn site tomorrow. A very weak afternoon sea breeze is expected to form tomorrow afternoon, however given how weak it is forecast to be it will likely not reach the burn site before nightfall. This will yield light winds out of the west through the afternoon tomorrow at the burn site. Overnight dispersion Saturday night into Sunday morning is forecast to be very poor. The fog potential Saturday night into Sunday morning is very low. .SATURDAY... Sky/weather.........Sunny. Chance of pcpn......10 percent. Max temperature.....Around 83. Min humidity........40 percent. Wind (20 ft)........Light winds becoming west around 5 mph early in the afternoon, then becoming light in the afternoon. Mixing Height.......Max 4900 ft AGL. Transport winds.....West around 14 mph. Max ADI.............79. Inversion End.......1000. TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........32 24 20 18 15 13 18 30 Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 10 Temp............63 70 74 78 81 82 83 83 RH..............56 47 44 42 41 41 40 40 20 FT wind dir..W W W W W W W W 20 FT wind spd..4 4 5 4 3 3 3 3 20 FT wind gust.13 13 11 11 11 11 11 11 Mix hgt (kft)...1.3 1.8 2.1 2.8 3.7 4.4 4.9 4.9 Transp wind dir.W W W W W W W W Transp wind spd.14 14 14 14 14 14 14 14 LVORI...........2 1 1 1 1 1 1 1 ADI.............23 36 41 48 57 65 79 78 .SATURDAY NIGHT... Sky/weather.........Partly cloudy then becoming mostly cloudy then becoming mostly clear. Chance of pcpn......10 percent. Min temperature.....Around 61. Max humidity........81 percent. Wind (20 ft)........Light winds. Max LVORI...........4. Min ADI.............1. Inversion Begin.....1900. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........32 48 42 32 29 14 Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).10 10 10 10 0 0 Temp............81 76 68 66 64 63 RH..............44 54 65 70 75 75 20 ft wind......W 2 SW 2 SW 2 SW 2 SW 2 W 1 20 ft wind gust.9 5 7 7 7 7 Mix hgt (ft)....3700 400 400 400 400 400 Transport wind..SW 6 SW 6 SW 2 SW 2 SW 2 SW 2 LVORI...........2 2 4 4 4 4 ADI.............1 1 1 1 1 1 .SUNDAY... Sky/weather.........Sunny. Chance of pcpn......0 percent. Max temperature.....Around 87. Min humidity........39 percent. Wind (20 ft)........Light winds becoming southwest around 5 mph late in the afternoon. Mixing Height.......Max 5800 ft AGL. Transport winds.....Light winds becoming west around 22 mph. Max ADI.............142. Inversion End.......1000. TIME (EDT) 6 AM 9 AM NOON 3 PM Sky (%).........8 9 4 4 Weather type....NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 Temp............61 65 79 86 RH..............81 75 54 40 20 FT wind......W 2G9 W 3G9 W 4G11 SW 5G13 Mix hgt (ft)....500 1000 3100 5500 Transport wind..W 2 W 10 W 18 W 22 LVORI...........5 4 1 1 ADI.............2 4 61 128 $$ Forecaster...Maskell Requested by...Kelly Wetzel Type of request...PRESCRIBED .TAG 2606762.0/CHS .DELDT 03/20/26 .FormatterVersion 2.0.0 .EMAIL kelly.wetzelwilson@usda.gov,samuel.sulser@usda.gov