Overview
- A slow‑moving storm cell dumped heavy rain that rapidly flooded low sections of the I‑75/I‑85 Downtown Connector, leaving multiple cars stranded and forcing a highway shutdown during Wednesday’s late‑afternoon commute.
- First responders and Good Samaritans rescued motorists from rooftops and hoods of submerged vehicles, and video from the scene showed a Waymo driverless vehicle stalled with water to the top of its wheels.
- Georgia DOT camera footage captured water rising within minutes as drainage struggled to keep up, and city crews worked from the Integrated Command Center to clear hazards and reopen lanes by early Thursday.
- Officials urged residents to avoid driving through standing water and to use 911 for emergencies, 511 for state route problems and ATL311 for non‑emergencies while The Weather Channel and local teams warn of more storms over the Memorial Day weekend.
- Local analysis says weeks of dry weather let debris build up in drains, reducing flow capacity and making low‑lying, high‑traffic corridors like the Downtown Connector especially vulnerable to sudden flash flooding that could disrupt holiday travel.