Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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007 FXUS62 KFFC 210752 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 352 AM EDT Fri Aug 21 2026 ...Morning Area Forecast Discussion... .KEY MESSAGES... - Scattered to numerous thunderstorms this afternoon may pose a damaging wind gust threat across Central Georgia. Frequent lightning and locally heavy rainfall possible with any storms. - Warm and humid again today but slightly `cooler` and more seasonal temperatures return this weekend into early next week. - Mostly dry this weekend with low daily rain chances returning for most by mid-week next week. && .SHORT TERM... (Today through Saturday) Issued at 350 AM EDT Fri Aug 21 2026 Currently: Thunderstorms are ongoing across North Georgia early this morning. Convection pulsed up fairly quickly upon entering the forecast area given the mostly untapped environment. And storms initially presented not only a severe wind threat but also a flash flooding risk due to the slower movement of storms. The most impressive was noted in Catoosa County in which the northern parts of the county received well over 3 inches of rainfall in an hour with a few spots between Ringgold and Boynton having radar estimates of up to nearly 4" in a little over an hour! While a few additional severe pulses cannot entirely be ruled out over the next hour or two, anticipating storms will gradually wane and lose steam as outflow races out ahead. Additional Thunderstorms This Afternoon: Most of North Georgia will be fairly worked over and baring any recovery, additional thunderstorm development is largely expected over Central and Eastern Georgia this afternoon into the evening where the highest moisture and instability will lie. A surface front will slowly sag south later today and areas along and south of this feature will be the focus areas for convective development. Storms may be capable of severe wind gusts in these areas as highlighted by the Marginal Risk Area (Level 1 of 5) in the Day 1 Severe Outlook by SPC. Heading into Saturday the surface front should be across our far southern counties thus, rain and thunder chances will be very limited and mostly confined to far south-central GA. Heat Trends: Less oppressive heat is on the horizon but not before one more day of hot and muggy conditions. With a warm and humid airmass still in place, temperatures will climb back into the 90s (except the higher elevations) this afternoon. Triple digit heat indices are forecast for most places today and nearing heat advisory criteria for parts of Central GA. An advisory was considered but the potential for higher convective coverage this afternoon elected to hold off. Regardless, continue to take extra care of yourself and others (including pets!) if you are outdoors today. Drier and less humid air will begin filtering in behind a frontal boundary tonight into Saturday. This will stick with us through the weekend. && .LONG TERM... (Saturday night through Thursday) Issued at 350 AM EDT Fri Aug 21 2026 The long-term forecast indicates a pronounced ridge centered over the Four Corners region, with an upper-level trough extending southward from the Midwest. This setup will push a front through the area Saturday and usher in drier air through the day, with dewpoint temperatures dropping into the 50s to mid 60s across our CWA by Sunday afternoon. As such, expect mostly fair weather with slightly cooler mornings through the weekend into early next week, with daytime high temperatures ranging from the upper 80s to low 90s and lower RH values. A few stray showers or storms will be possible across the southern portion of our CWA Saturday afternoon; otherwise, the frontal boundary should come through mostly dry and bring an end to the precipitation chances through Monday morning. By mid-week, the upper- level flow becomes more zonal, and conditions begin to favor the typical diurnal thunderstorm and humid pattern we so often experience during the month of August. As a result, we will need to keep an eye on heat index values across the CWA during the second half of next week. && .AVIATION... (06Z TAFS) Issued at 104 AM EDT Fri Aug 21 2026 Mostly VFR through the period. A semi-organized line of tsra has now formed and is moving ESE into North Georgia. Maintain tsra wording in the northern terminal TAFs with timing roughly 08-12z. Confidence is still low give slow movement and current trajectory. There is still a non- zero chance tsra falls apart or tracks just to the north of ATL. But we could still see strong VRB winds up to 35-40kts with the GF. Cu field of 3-5kft will develop in the AM with additional chances for tsra as early as 17-19z. Largely VRB wind through the night outside of tsra, but favoring W side less than 10kts after 15z. //ATL Confidence...06Z Update... Low confidence on overnight tsra forecast. High confidence on remaining elements. 07 && .PRELIMINARY POINT TEMPS/POPS... Athens 92 70 91 69 / 60 50 10 0 Atlanta 92 72 92 72 / 50 20 0 0 Blairsville 84 65 84 62 / 60 10 0 0 Cartersville 91 70 92 69 / 30 10 0 0 Columbus 94 73 94 72 / 40 40 10 0 Gainesville 90 70 90 69 / 50 20 0 0 Macon 94 72 93 71 / 60 60 10 0 Rome 90 69 92 69 / 20 0 0 0 Peachtree City 92 71 92 70 / 50 30 0 0 Vidalia 97 72 93 72 / 60 70 30 0 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...07 LONG TERM....82 AVIATION...07