Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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802 FXUS62 KFFC 290714 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 314 AM EDT Sat Aug 29 2026 ...Morning Area Forecast Discussion... .KEY MESSAGES... - Scattered thunderstorms are expected today followed by isolated storms on Sunday. A few strong storms capable of producing gusty winds will be possible. - Locally heavy rainfall from stronger storms may lead to isolated instances of flash flooding. - Heat will build through the work week with triple digit heat indices returning to much of Georgia. && .SHORT TERM... (Today through Sunday) Issued at 310 AM EDT Sat Aug 29 2026 A frontal boundary remains stalled to the immediate north of I-85 as the morning begins. Showers and thunderstorms have lingered along the boundary through the overnight and early morning hours, and additional development is forecast to continue for the next few hours. Some stronger storms have been able to tap into deeper moisture and produce rainfall rates in excess of 2 inches per hour and produce localized flooding concerns. With wet soils and ample low level moisture, patchy fog and low cloud ceilings will be possible this morning. Low temperatures will largely range from the upper 60s to low 70s. With upper level troughing moving away to the northeast, there will be little movement in the position of the boundary over the course of the day and thus little change in the overall pattern. Increased cloud cover will once again help limit high temperatures, particularly in central Georgia. Highs today will rise into the mid to upper 80s in central Georgia and upper 80s to low 90s in north Georgia. Scattered diurnally-driven thunderstorms are expected this afternoon, with the highest chances along and south of the frontal boundary. As the front steadily weakens, there will be little shear, though with SBCAPE between 1500-2500 J/kg and PWATs of 1.6-2 inches, there will be a chance for the development of isolated stronger storms capable of producing gusty microburst winds. Showers and thunderstorms will gradually diminish after sunset with decreasing diurnal instability. The threat for locally heavy rainfall will also warrant continued monitoring, though it will be most likely to the south of the fall line where where soils will be more capable of handling it. A broad upper level ridge over the Great Plains will begin to approach the eastern CONUS on Sunday. The influence of this ridge will kick off climbing afternoon highs into the early parts of the coming week. It will also help suppress diurnal convection, leading to more isolated storm coverage on Sunday afternoon. && .LONG TERM... (Sunday night through Friday) Issued at 310 AM EDT Sat Aug 29 2026 High pressure will slowly build in over the course of the long term. This will continue to decrease chances gradually of afternoon thunderstorms while slowly increasing afternoon high temps and with it heat indices. Temps will return to the mid 90s by the middle of the week with widespread triple digit heat index values along and south of I-85. A heat advisory may be needed for the southern portions of the CWA as early as Monday. Overnight lows will also be on the rise with the return of the mid 70s to much of the area. This doesn`t do much in providing relief from the daytime heat; especially for vulnerable populations. Look after each other, and keep an eye on pets and kids. Stay hydrated if you plan to spend time outside. Thunderstorm chances during the afternoon will be down to less than 10% for much of the area through the week. As a result, the chances of cooling off with an afternoon thunderstorm decrease with it. Summer is still here and it`s planning to stick around for a while. && .AVIATION... (06Z TAFS) Issued at 200 AM EDT Sat Aug 29 2026 Thunderstorms persist along a frontal boundary stalled across north Georgia, including in the vicinity of RYY and FTY. MVFR ceilings have developed over ATL in the vicinity of these storms as well. Wet soils and light winds will also increase the potential for patchy fog and low (IFR/LIFR) ceilings at the ATL metro sites during the early morning hours, with the most likely time from 11-13Z. A scattered cu field between 025-040 will develop by 15Z, which will be followed by another round of TSRA this afternoon. A PROB30 for TSRA is being carried from 19-23Z at ATL. Outside of storm outflows, winds today will be primarily E/SE at 4-8 kts. //ATL Confidence...06Z Update... Medium confidence on early morning low ceilings. High confidence on all other elements. King && .PRELIMINARY POINT TEMPS/POPS... Athens 88 68 90 69 / 30 20 20 10 Atlanta 88 71 89 72 / 20 10 20 10 Blairsville 83 65 84 64 / 30 10 30 10 Cartersville 90 70 90 70 / 10 10 20 10 Columbus 90 72 91 73 / 40 20 20 10 Gainesville 86 70 88 70 / 20 10 20 10 Macon 88 70 90 71 / 40 10 20 10 Rome 90 69 90 70 / 10 10 20 0 Peachtree City 88 69 90 70 / 20 10 20 10 Vidalia 85 72 90 72 / 40 20 40 10 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...King LONG TERM....Vaughn AVIATION...King