textproduct: Atlanta/Peachtree City

KEY MESSAGES

- Unseasonably warm conditions will continue into the beginning of the work week. Heat index values will peak in the upper 90s to mid 100s Today and Sunday.

- Continued increased moisture across the region will keep precipitation chances elevated through the end of the week.

- Marginal Risk of isolated strong to severe thunderstorms in the short term with strong gusty winds being the primary threat.

SHORT TERM

(Today through Sunday) Issued at 329 AM EDT Sat Sep 19 2026

High pressure wedge/ridge continue to weaken and moisture pushes SW down the eastern seaboard. This increased moisture combined with high temps in the lower to middle 90s will keep precip chances elevated through the weekend. A weak backdoor cold front along the NC/SC border will keep moving SW and push into east GA this afternoon. A decent amount of low to mid level moisture will accompany this boundary as Dewpoints expected in the 70s across North and Central GA Today. Combined with an axis of moderate instability we will see scattered to numerous showers and thunderstorms this afternoon and evening. Low level lapse rates expected to become fairly steep again this afternoon so looks like the greatest threat from any storms that develop will be strong gusty winds again. We will also see frequent lightning strikes and periods of heavy rain.

Moisture continues to increase from the NE through the beginning of the work week keeping PoPs in the scattered range (30-50%). Temps also stay in the 90s through the short term so a similar threat of severe storms also continues. The current general and marginal risk areas of severe storms from SPC look good across the region.

LONG TERM

(Sunday night through Friday) Issued at 329 AM EDT Sat Sep 19 2026

The ridge is finally expected to break down Sunday night into Monday as another front approaches from the Mid MS river valley. Isolated thunderstorms become more widespread beginning Monday afternoon. We'll see storm chances between 50% and 75% through Tuesday before another ridge turns the flow more NW and we get cut off from the Gulf moisture towards late part of the work week.

This will help to moderate temps down to the upper 80s and low 90s by Wednesday and settle into the mid to low 80s towards the end of next week as the dry air clears out afternoon convection chances. Low Temps will drop back into 60s Wednesday night into Thursday and we'll get a pleasant taste of fall.

AVIATION

(06Z TAFS) Issued at 219 AM EDT Sat Sep 19 2026

High clouds across the area with some isolated showers and thunderstorms mainly across eastern portions of the state. These storms are diminishing and should dissipate over the next hour or two. Will continue to see light and variable winds through daybreak with wind speeds increasing into the 4-8kt range out of the E to NE this afternoon. Will see some VFR CU developing across the area by 16z-18z with a chance of SHRA/TSRA this afternoon/evening. Will see some MVFR ceilings in and around diurnally driven convective activity.

//ATL Confidence...06Z Update... Confidence high on all elements

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PRELIMINARY POINT TEMPS/POPS

Athens 70 90 69 92 / 30 10 10 20 Atlanta 72 91 72 92 / 30 10 10 30 Blairsville 64 85 63 86 / 30 60 20 60 Cartersville 71 93 70 93 / 30 20 10 30 Columbus 73 93 72 93 / 30 20 10 30 Gainesville 70 89 70 90 / 40 30 20 40 Macon 71 92 71 92 / 30 10 10 20 Rome 70 94 69 94 / 10 20 10 30 Peachtree City 70 92 69 92 / 30 10 10 20 Vidalia 72 91 72 91 / 20 20 10 30

FFC WATCHES/WARNINGS/ADVISORIES

None.