Area Forecast Discussion
Issued by NWS Atlanta, GA
Issued by NWS Atlanta, GA
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881 FXUS62 KFFC 111024 AFDFFC Area Forecast Discussion National Weather Service Peachtree City GA 524 AM EST Thu Dec 11 2025 ...New 12Z Aviation Discussion... .KEY MESSAGES... Updated at 522 AM EST Thu Dec 11 2025 - Significant rainfall is not anticipated in the region through the end of next week. - An Arctic front will produce colder temperatures Sunday and Monday, then a rapid warm up will occur during the second half of next week. && .SHORT TERM... (Today through Friday) Issued at 100 AM EST Thu Dec 11 2025 Benign Weather Today & Friday: A post frontal airmass will be in place across Georgia today. High temperatures will be around 10 degree cooler than yesterday due to CAA induced by northwest winds. A few gusts near 20 mph should occur this afternoon, but weaker flow (compared yesterday) in the 925 to 850 mb layer should limit the wind gust potential today. After a cool start Friday morning (morning lows in the lower 30s), temperatures should rebound quickly. Pressure gradients between a surface low in the Tennessee Valley and surface high over Florida will produce modest southwest winds (WAA). This will push temperatures into the lower 60s across most of north and central Georgia by Friday afternoon. No precipitation or hazardous weather are expected Friday. && .LONG TERM... (Friday night through Wednesday) Issued at 100 AM EST Thu Dec 11 2025 As the long term period begins on Friday night, broad troughing will remain in place across southeast Canada and the northeast CONUS. Northwesterly upper level flow will be in place across the majority of the CONUS behind this trough. Meanwhile, a closed mid-level low will drop from central Canada towards the Great Lakes region, with a surface low spinning up underneath by Saturday morning. A second weak disturbance traversing the northwesterly flow and moving through the Tennessee Valley will only bring minimal forcing to north Georgia and is not anticipated to bring anything more than a light, isolated shower or two to the area overnight into Saturday. PoPs through Saturday will be about 5-10% across the area. Amid gradual advection of warm and moist air ongoing, and both low and high temperatures on Saturday are forecast to range from about 2-5 degrees above daily normals. Lows on Saturday morning will be in the mid to upper 30s in north Georgia (and low 30s in the mountains) and low 40s in central Georgia. High temperatures will range from the mid 50s in the far northern tier to the upper 60s in east-central Georgia on Saturday afternoon. Saturday night into Sunday, the aforementioned surface low will swing out of the Great Lakes region and towards Maine, at which point a cold front will advance through the Midwest and continue southward towards the forecast area. With model guidance coming into better agreement on the timing of the front`s progression, isolated to scattered showers are forecast to spread into northwest Georgia on Saturday night. As the front advances southward, scattered showers (with PoPs between 25-45%) will overspread much of the forecast area after midnight and through the early morning hours on Sunday. Light precipitation trailing behind the front and below freezing temperatures could combine to produce a light wintry mix in the far northeastern mountains before sunrise, but if this occurs at all, it will be brief with no significant accumulations. Rain chances are then forecast to diminish with the front weakening as it moves south and east into central Georgia. Rainfall amounts ahead of the front appear to be negligible - at most about 0.10 inch near the I-85 corridor. There is the potential for significantly colder air to set up behind the front late Sunday into early next week. The extent of how much temperatures will drop will depend on the movement of the high`s center and the proximity of north/central Georgia to the core of the coldest air. Latest guidance continues to trend towards better agreement on a southeastward detour of the high`s center, through the Ohio Valley and across Georgia on Monday, then near the SOuth Carolina coast early Tuesday. This would favor a greater drop in temperatures by by early Monday morning. Guidance also continues to indicate the weakening of the high as it moves southeast, which would serve to moderate the airmass as it sets up over the region. With more run to run consistency in handling this Arctic high, confidence is increasing on temperatures early next week. At this time, lows on Monday are forecast to be mainly in the low 20s, with even some upper teens to the north of the I-85 corridor, though the evolution and track of the Arctic high will still need to be monitored. Monday will be brisk throughout, with highs being limited to the low to mid 40s across the area. With the surface high continuing to weaken and move southeast into the Atlantic, the airmass will begin to moderate on Tuesday. While still well below normal, lows on Tuesday are forecast to be in the low to mid 20s and highs will rise into the upper 40s to mid 50s in the afternoon. The influence of the high will furthermore inhibit rain chances early next week until at least Wednesday, when it will be well offshore and the next disturbance approaches the region. && .AVIATION... (12Z TAFS) Issued at 522 AM EST Thu Dec 11 2025 MVFR ceilings and localized visibility restrictions will occur near the higher terrain in north Georgia through 14Z today. Otherwise, VFR conditions (unrestricted visibility and cloud bases above 8000 ft AGL) will continue in north and central Georgia through 18Z Saturday. Northwest winds (6 to 12 kt) will linger through 23Z Friday, then light winds (0 to 6 kt) are expected. //ATL Confidence...12Z Update... High confidence in all elements of the KATL TAF. Albright && .PRELIMINARY POINT TEMPS/POPS... Athens 49 31 60 37 / 0 0 0 0 Atlanta 49 35 60 39 / 0 0 0 0 Blairsville 42 28 54 30 / 0 0 0 0 Cartersville 49 32 60 34 / 0 0 0 0 Columbus 53 33 64 42 / 0 0 0 0 Gainesville 48 33 58 37 / 0 0 0 0 Macon 53 31 63 40 / 0 0 0 0 Rome 52 33 63 37 / 0 0 0 0 Peachtree City 50 32 62 37 / 0 0 0 0 Vidalia 55 33 64 43 / 0 0 0 0 && .FFC WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...Albright LONG TERM....King AVIATION...Albright