FXUS62 KFFC 211053 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 653 AM EDT Mon Sep 21 2026 ...New 06Z Aviation Discussion... .KEY MESSAGES... - Unseasonably warm conditions will continue through the middle of the week. Heat index values will peak in the upper 90s to lower 100s Today and Tuesday. - Rain chances will peak Mon, Tues, and Wed afternoons. The potential for severe weather will need to be monitored. - More seasonable temperatures are expected starting midweek. && .SHORT TERM... (Today through Tuesday) Issued at 336 AM EDT Mon Sep 21 2026 Current satellite loop shows mostly clear skies this morning. Expecting another round of showers and thunderstorms as easterly flow continues to pump Atlantic moisture in across the state. Best chances of diurnally driven convection appears to be focused across North and portions of central GA. There is a weak frontal boundary that is expected to move into the Mid MS river valley today and into NW GA Tue morning. A moist airmass remains in place ahead of this frontal boundary with marginal instability developing each day. Shear remains weak (< 20 kts), but diurnal heating and PWATs in the 1.5" to 2" range each day combined with a bit of cooling aloft and a weak forcing mechanism will work together to create a few strong to severe storms Today and Tuesday. The current Day 1 and Day 2 Marginal risk areas across North and Northern Central GA look good. Biggest threats from these storms will be damaging wind gusts, frequent lightning strikes, and periods of heavy rain. && .LONG TERM... (Tuesday night through Sunday) Issued at 336 AM EDT Mon Sep 21 2026 Wednesday will bring one final day of thunderstorms to portions of north Georgia before dry more autumn like air filters in behind it. Taking a look at the severe threat, warm temperatures and lingering SW flow from the day before should continue to provide us with plenty of instability out ahead of whatever linear system comes together across the northeastern portions of the CWA. There is still a lot of uncertainty with regards to timing and strength, though most models are in agreement that storms will likely continue into the overnight hours before dissipating early Wednesday morning. As the parent low pushes off the Atlantic coast, wedge like conditions set up as a strong high pressure in Northern New England gives us our first taste of fall weather. Temperatures are expected to fall into the low 80s on Wednesday and Thursday has us in the upper 70s with overnight lows in the 50s and 60s. Pumpkin spice season has finally arrived. Dry fall conditions are expected to continue through the weekend and into the start of early next week as our rain chances fall to near zero. Should be a great weekend to get outside and enjoy the weather. && .AVIATION... (12Z TAFS) Issued at 548 AM EDT Mon Sep 21 2026 Mostly clear skies across the area this morning with some patchy fog. Winds are light and variable but will pick up out of the East shortly after sunrise into the 4-8kt range. Winds will stay out of the E to SE through the period. Expecting another round of afternoon/evening SHRA/TSRA with the best timing at the TAF sites between 20z-02z. Precip should diminish across the area by 04z Tue. //ATL Confidence...06Z Update... Confidence high on all elements 01 && .PRELIMINARY POINT TEMPS/POPS... Athens 92 69 90 67 / 20 20 50 70 Atlanta 92 72 90 70 / 20 30 40 40 Blairsville 86 64 83 61 / 60 40 70 60 Cartersville 92 70 91 68 / 30 30 50 50 Columbus 93 72 93 71 / 10 20 20 10 Gainesville 90 70 88 68 / 40 30 60 60 Macon 93 69 92 69 / 10 10 20 30 Rome 93 68 91 66 / 30 40 50 50 Peachtree City 92 69 91 68 / 10 20 40 30 Vidalia 92 70 92 71 / 10 10 10 20 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...01 LONG TERM....Vaughn AVIATION...01