Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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843 FXUS62 KFFC 301816 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 216 PM EDT Sun Aug 30 2026 ...Afternoon Area Forecast Discussion... .KEY MESSAGES... - High pressure will promote drier conditions and warming temperatures. - Isolated thunderstorms will be possible in central Georgia this afternoon and Monday afternoon. - Above normal temperatures and heat index values in the triple digits will persist alongside mostly dry conditions through the end of the week. && .SHORT TERM... (This afternoon through Monday) Issued at 211 PM EDT Sun Aug 30 2026 An upper-level ridge will continue to build eastward with our region along the eastern side of the ridge axis. Continued low-level moisture advection associated with southeasterly flow will funnel higher precipitable water values into our central and southern CWA. Even with the building high pressure and the growing mid to upper- level dry air overspreading our area, we can expect diurnal isolated to scattered shower and thunderstorm chances to continue into Monday afternoon. However, PoP chances will be capped around the 15% range and aligned mostly south of Columbus to Macon. A few of the storms that do develop today or tomorrow will have the potential to be strong, with gusty winds and heavy rainfall being the primary threats. Precipitation chances will be more limited each day as our pattern continues to transition to a more convectively suppressed summertime regime. We will also see our daytime temperatures began to climb into the upper 80s to low 90s over the next couple days with less cloud cover and building heights. The higher temperatures combined with the previously mentioned low-level moisture advection will keep dewpoints in the low to mid-70s over most of our area, making it fell uncomfortable in the afternoons. As a result, the Heat Index will climb into the mid 90 to low 100s through Monday afternoon everywhere outside of the mountain counties. This will likely fall below Heat Advisory criteria, but we will need to monitor the conditions as we move further into next week. && .LONG TERM... (Tuesday morning through next Saturday) Issued at 211 PM EDT Sun Aug 30 2026 There are no big changes in expectations for the bulk of the extended forecast period that will bring hot and mostly dry conditions with any hope for a pattern change delayed until at least next weekend. Above normal temperatures will peak during the midweek time frame as the expansive upper ridge reaches its apex across the region. Widespread highs in the mid 90s and heat index values near and over 100 degrees are expected. This will also serve to greatly limit rain chances for the vast majority of the area with any appreciable chances for diurnal precipitation shunted to the far southern counties. As mentioned above, hints of any pattern change will hold off until next weekend when the upper ridge may retrograde westward, potentially setting up a trough across the eastern U.S. and allowing a frontal boundary to push toward the area. This will also have a hand in determining the eventual track/evolution of the wave associated with the remnants of former T.S. Dolly and its associated moisture. Given this remains a week away, there is plenty of uncertainty in forecast details, so at this juncture PoPs gradually increase by next weekend. && .AVIATION... (18Z TAFS) Issued at 128 PM EDT Sun Aug 30 2026 Ceilings continue to lift to the prevailing Low-VFR/VFR range with some patchy MVFR improving through 20Z. The Cu field will be scattered to broken through the afternoon producing a few isolated showers and thunderstorms through sunset. Surface winds will be light, favoring the northeast to southeast around 6kts becoming light and variable overnight. Expect a few sites with MVFR/IFR ceilings possible south of Columbus to Macon by daybreak tomorrow. //ATL Confidence...18Z Update... Medium confidence on low CIGS tomorrow morning. High confidence on all other elements. 82 && .PRELIMINARY POINT TEMPS/POPS... Athens 70 93 71 95 / 10 0 0 0 Atlanta 73 92 74 94 / 10 0 0 0 Blairsville 65 87 67 88 / 0 20 0 10 Cartersville 71 93 72 95 / 0 0 0 0 Columbus 74 94 74 95 / 0 10 0 10 Gainesville 70 91 71 93 / 0 0 0 0 Macon 72 93 72 94 / 10 0 10 10 Rome 71 93 72 95 / 0 0 0 0 Peachtree City 70 92 71 94 / 10 0 0 10 Vidalia 73 92 73 93 / 10 20 20 30 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...82 LONG TERM....RW AVIATION...82