Slow-moving storms are poised to unleash heavy rain across southeast Georgia and northeast Florida late Sunday afternoon, bringing the risk of localized flooding, dangerous road conditions and prolonged delays for travelers and residents alike. Meteorologists warn that the system—expected to linger into Monday—could drop 3 to 5 inches of rainfall in some areas, with isolated pockets receiving even higher totals, according to the National Weather Service’s Atlanta office. The slow-moving nature of the storm means flash flooding remains a primary concern, particularly in urban drainage systems and low-lying regions.
While the heaviest activity is forecasted to peak between 3 p.m. And 9 p.m. ET Sunday, scattered showers and thunderstorms could persist into Monday morning, complicating morning commutes and outdoor plans. Authorities are advising residents to monitor local alerts, avoid unnecessary travel, and prepare for potential power outages if lightning strikes trigger downed lines. The Georgia Emergency Management and Homeland Security Agency has issued a statement urging preparedness, noting that past slow-moving systems in the region have led to water rescues and road closures.
In northeast Florida, particularly around Jacksonville and the St. Johns River basin, the National Weather Service has highlighted the risk of minor to moderate river flooding due to sustained rainfall. The St. Johns River Water Management District is already tracking elevated levels, with forecasts suggesting minor flooding possible along tributaries by early next week. Boaters and those near waterways are being cautioned to exercise extreme caution, as currents and visibility may deteriorate rapidly.
Key Areas Under Watch: Where the Worst Impacts Are Expected
Southeast Georgia’s coastal counties, including Brunswick, Camden, and Glynn, are under the highest threat for prolonged heavy rain, with some models suggesting up to 7 inches in localized areas. In northeast Florida, Duval, Nassau, and Baker counties are bracing for similar conditions. The National Hurricane Center has classified this as a “training thunderstorm” scenario, where repeated storm cells move over the same regions, amplifying rainfall totals.
Flash Flooding and Travel Disruptions: What to Expect
Road closures are likely on major highways, including I-95, I-16, and GA-17, where water overpasses and poor drainage have historically caused delays. The Georgia Department of Transportation has preemptively deployed crews to monitor high-risk sections, but motorists should anticipate 30-minute to 2-hour delays in affected areas. Air travel at Savannah/Hilton Head International and Jacksonville International may also face disruptions, with airlines advising passengers to check for updates.

For those planning outdoor activities, including coastal events or golf tournaments, organizers are urged to have contingency plans in place. The National Weather Service advises that lightning activity could spike after 5 p.m. ET, increasing the risk of strikes to open areas.
Preparedness Tips: How to Stay Safe
Residents should take the following steps to mitigate risks:
- Check drainage systems: Clear gutters and downspouts to prevent water backup.
- Secure outdoor items: High winds ahead of storms could turn debris into projectiles.
- Charge devices: Have portable chargers and a battery-powered radio in case of power outages.
- Avoid flooded roads: Even shallow water can sweep away vehicles—never attempt to cross.
@NWSAtlanta Heavy rain will continue to impact SE GA & NE FL through Monday morning. Flash flooding is possible, especially in urban areas. Stay weather aware and avoid flooded roads. #gawx #flwx
What Comes Next: The Forecast Beyond Monday
While the immediate threat of heavy rain will ease by Monday evening, meteorologists caution that residual moisture could trigger additional showers Tuesday morning. The extended outlook suggests a return to seasonal temperatures by midweek, but humidity levels will remain elevated. Longer-term models indicate another system may approach the region by Friday or Saturday, though confidence in its track remains low.

For now, the focus remains on Sunday’s storm. Authorities urge residents to stay informed through local emergency alerts and to share safety tips with neighbors. If you’re in an area prone to flooding, consider relocating to higher ground if advised by officials.
Have you experienced flooding or storm-related issues in your area? Share your stories and safety tips in the comments below—or tag @ArchydeNews on X for real-time updates.