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What is an Area Forecast Discussion?

Area Forecast Discussions are the real forecasts, written 3 to 4 times daily by NWS meteorologists reading the models and interpreting what they mean for your area. They offer far deeper insight than any weather app, but they're written in dense meteorological shorthand. Plaincast uses Anthropic's Claude to summarize them into plain English, side by side with the annotated original.

Area Forecast Discussion · National Weather Service Atlanta (FFC) · issued Monday, July 27 at 3:20 PM EDT.

Revised in 11 passages since the 1:51 PM discussion. See every revision.

Messages

Isolated thunderstorms are possible this afternoon across central and eastern Georgia. A few may become briefly severe with damaging wind gusts up to 60 mph the primary threat.

The threat for storms will continue on Tuesday with the main threats being gusty winds, locally heavy rainfall, and frequent lightning across north Georgia and the metro.

Heat index values in excess of 100 are in place today with values exceeding 105 on Tuesday. A Heat Advisory has been issued for nearly all of north and central Georgia for Tuesday afternoon and evening.

Short Term

(This evening through Tuesday) Issued at 310 PM EDT Mon Jul 27 2026

Remnant outflow boundary/MCV continues to push south across the forecast area this afternoon after the morning convection. Airmass in parts of central Georgia remains quite ripe for some afternoon convection with analyzed SBCAPE of 3000-4000+ J/kg. Dewpoints are hovering in the upper 70s to near 80 in some of these areas with plenty of moisture through the column bringing precipitable water to near or above 2". Main thing missing is the shear, otherwise our parameter space would be a bit more concerning. Still, afternoon storms are starting to fire across parts of eastern Georgia and isolated convection should spread into central Georgia if cloud cover clears enough to bring us to convective T. A few of these storms could be briefly severe thanks to precipitation loading of downdrafts and 1000+ J/kg of analyzed DCAPE. Primary threat would be wind gusts up to 60 mph.

Tomorrow sees the upper level ridge slide ever so slightly to the east which is very unfortunate for our temperature and humidity forecast. Heat builds into the area with mostly clear skies. Highs will be in the 90s. Dewpoints will be in the 70s. Misery will be experienced by all. A Heat Advisory has been issued for portions of north and central Georgia from noon through 8 pm Tuesday. Please take caution if working, exercising, or playing outdoors. Take frequent breaks and drink plenty of liquids.

Jet streak embedded within the northwest flow of the upper level ridge/trough is expected to kick off some convection north of the area tomorrow afternoon/evening. CAMs are pretty uniform in seeing an MCS form and push south, potentially clipping portions of NE GA by the late evening to early overnight. Where things diverge is in how well said MCS holds together. Various CAMs dissolve it before it arrives into the forecast area - others keep it into NE GA before quickly falling apart, and others still keep it together into parts of the metro. The REFS shows 40%-50% probability of 40 dbz returns across north Georgia Tuesday night, and (as usual) the RRFS is one of the more aggressive models in showing convection pushing into north Georgia and the metro. REFS mean SBCAPE values hover near 3000 J/kg, so plenty of instability will be in place. Shear will once again be the limiting factor (0-6 km mean around 20 knots). The main takeaway is that uncertainty is high around just how far south these storms get, but where they do hold together, expect to have a chance of some severe weather. The primary threat will be damaging wind gusts up to 60 mph.

Long Term

(Wednesday morning through next Sunday) Issued at 310 PM EDT Mon Jul 27 2026

By Wed morning a cold front will be As the long term period begins, a colds front will move south into North GA and push rapidly through the area. Expecting a line of showers and thunderstorms to develop with this front and move south through the day Wednesday. A few of these storms may be strong and capable of producing gusty winds, frequent lightning strikes, and periods of heavy rain. We are currently under a Marginal risk across portions of central GA so will Definitely keep an eye on how things develop as we get closer to Wed. With the front moving through the area during the day we will also have the diurnally driven instability to deal with and things trailing off after sunset. The models show this front moving south of the area by 00z Thu with a much drier airmass moving in behind it. Drier air associated with a high pressure ridge builds southeast out of the western great lake states clearing things out for North and Central GA Thu/Fri. temperatures are not expected to cool to much with high temperatures still expected in the upper 80s to middle 90s but the Apparent T (feels like temperatures) will be much lower.

By Sat the next frontal boundary moving east out of the lower to mid MS river valley moves into W GA just before daybreak. The main low pressure center moves east into western KY at the same time. With the close proximity of the low center to NW GA this frontal boundary should stay fairly organized as it moves through the region. The front exits the state Sun morning as the main low center moves NE into the Central/Eastern Great Lake states. Right now this is Days 6 and 7 so things may change as we get closer.

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