Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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312 FXUS62 KFFC 091046 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 646 AM EDT Mon Mar 9 2026 ...New 12Z Aviation Discussion... .KEY MESSAGES... Updated at 645 AM EDT Mon Mar 9 2026 - Temperatures will remain well above normal (15-20+ degrees) through midweek before cooler temperatures arrive in the wake of a cold front. - Thunderstorms are possible Monday night into the first half of Tuesday for western Georgia. Some storms could be strong to severe. - The development of more widespread thunderstorms is possible beginning Wednesday afternoon, lingering overnight into Thursday. Monitoring the potential for a few storms to become strong to severe. && .SHORT TERM... (Today through Tuesday) Issued at 426 AM EDT Mon Mar 9 2026 Widespread dense fog will start us off this morning. A dense fog advisory is in effect for almost the entire CWA with visibilities falling below a quarter mile. Conditions should improve after noon as SW at 5-10 mph pick up and high temperatures heat up into the upper 70s and lower 80s. Despite yesterday`s showers and thunderstorm activity, TDs will still rise into the 60s by this afternoon and instability is expected to build with it. Marginal values in the range of 500-600 J/KG are expected, but more substantial values are expected to build in Alabama. Models are beginning to come into an agreement that an MCS will likely form in this warm sector and follow the stationary front down across western Georgia between 6pm and 1am. This line of storms could include damaging winds and small hail, and the greatest threat for severe weather appears to be between I-75 and I-20. Luckily, the MCS is expected to fizzle out once it reaches the state line making the severe threat relatively short lived. But with the stationary front still draped across Georgia, scattered showers north of I-20 are expected to continue tomorrow morning and into the afternoon. && .LONG TERM... (Tuesday night through Sunday) Issued at 426 AM EDT Mon Mar 9 2026 Active Weather Mid-Week: Strong warm air advection will develop over Georgia early Wednesday and start to prime the atmosphere for active weather late in the day. The southwest flow ushering in the warm and humid airmass is being driven by a mid-level ridge extending up from the eastern Gulf, and a deep trough over the central US. This longwave trough will be a combination of two mid-level features; a closed low over the Great Lakes with a strong cold front extending southwest into the Southern Plains, where another surface low will be developing underneath a mid-level cutoff low. Despite dewpoints surging into the mid 60s, the ridge will keep us rain-free to start the day, with only some mid to high level clouds streaming overhead. By the afternoon, temperatures will climb into the low to mid 80s in north GA, and mid to upper 80s in central GA. Daily high temperature records will be threatened if cloud cover doesn`t end up interfering too much. By around sunset, the deep trough and associated cold front will likely extend from the TN Valley into the lower MS Valley, with a long line of strong to severe storms. This front and line of showers and storms is expected to start to push into far NW GA shortly after sunset, and spread across the rest of the area overnight. Our confidence remains high in widespread showers and storms across the area during this period, but confidence is lower on who will be at risk for severe weather. At this time, the highest chances look to be across far NW GA when the front initially starts to push through. How far this threat extends across the rest of the area, if at all, will become clearer over the coming days as we get a better idea on the environment in place ahead of the front. In addition to a severe threat, we could also see a risk for some localized flash flooding in the hardest hit areas. Again, the area at highest risk at this time is far NW GA. Please stay tuned for more updates on this threat as it gets closer in time! Cooler and Dry Late Thursday into the Weekend: Following the cold front on Thursday, a dry and cool airmass will spread across the state through the first half of the weekend. Temperatures on Thursday afternoon will likely be over 20 degrees cooler than on Wednesday, with upper 50s to low 60s in north GA and upper 60s in central GA. With breezy northwest winds ushering in the cool airmass Thursday night, lows on Friday morning will likely range from the mid to upper 30s in north GA, to the low to mid 40s in central GA. This will be the coolest stretch of the period, as the airmass starts to warm back up on Friday, with highs likely returning to the 60s an 70s. On Saturday, southerly flow will start to pick back up, with highs in the upper 70s and continued dry conditions. The spread in model guidance starts to increase quite a bit for Sunday, but in general we could see rain chances starting to pick back up within southwest flow. && .AVIATION... (12Z TAFS) Issued at 645 AM EDT Mon Mar 9 2026 IFR/LIFR CIGS and VIS are expected to linger this morning as SW winds at 5-10kts continue to funnel moisture into the area. Conditions will improve to low VFR after 17z. A line of TSRA is possible after 02Z. After the line moves through, lingering -SHRA is expected after 09Z. //ATL Confidence...12Z Update... Medium on TSRA chances. High on all other elements. Vaughn && .PRELIMINARY POINT TEMPS/POPS... Athens 79 60 78 62 / 10 50 40 0 Atlanta 79 62 78 63 / 30 50 40 0 Blairsville 75 55 75 59 / 10 60 50 10 Cartersville 79 60 78 62 / 30 60 40 10 Columbus 81 62 83 62 / 40 50 10 0 Gainesville 77 60 77 63 / 10 60 40 10 Macon 82 62 83 62 / 20 30 20 0 Rome 82 63 82 64 / 30 70 40 10 Peachtree City 79 60 79 62 / 30 50 30 0 Vidalia 84 64 86 64 / 10 20 20 0 && .FFC WATCHES/WARNINGS/ADVISORIES... Dense Fog Advisory until 11 AM EDT this morning for GAZ001>009- 011>016-019>025-027-030>039-041>062-066>076-078>085-089>097- 102>109. && $$ SHORT TERM...Vaughn LONG TERM....Culver AVIATION...Vaughn