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Gwinnett County hurricane guide

The Gwinnett County Office of Emergency Management (OEM) is a civilian unit within the Gwinnett County Police Department that coordinates the county's emergency management program, including hazard mitigation and recovery help after emergencies. Gwinnett is inland, northeast of Atlanta. The county's local hazards page covers flooding and dam failure, and its free Alert Gwinnett system sends severe thunderstorm, flash flood, and tornado warning alerts.

Checked on October 9, 2026

Every phone number and web address on this page was checked against official sources on that date. Details can change, especially during a storm. Always follow instructions from Gwinnett County Office of Emergency Management. In a life threatening emergency, call 911.

What to know in Gwinnett County

  • Gwinnett County says floods can be slow or fast rising, and many communities see flooding after spring rains or heavy thunderstorms. The county has 25 dams, and dam failures can happen with little warning. It tells residents to listen to local radio, TV, or a NOAA Weather Radio for flood information, to stay away from rivers, streams, creeks, and storm drains, and not to return home until local authorities say it is safe.

Emergency and information numbers

Service Number Notes
Emergency 911 Police, fire, and ambulance. Call only when someone's life or property is in danger.
Emergency management office 770-513-5600 Gwinnett County Office of Emergency Management, 800 Hi-Hope Road, Lawrenceville. Office line. Not for emergencies.
County information line 770-822-8000 Gwinnett County government, Justice and Administration Center, 75 Langley Drive, Lawrenceville. Office line. Not for emergencies.

Official alerts and information

  • Alert Gwinnett: Free alerts by text or phone, including severe thunderstorm, flash flood, and tornado warnings. Sign up before a storm. Website.

Evacuation centers

Open only when announced

Evacuation centers open only when officials announce them, and not every center opens for every storm. Check the official list of open centers before you leave home. Bring your own bedding, food, water, and medicines.

Gwinnett County's emergency management pages tell residents that shelters cannot always accept pets and to plan ahead for them. They do not publish a list of shelters. Check Alert Gwinnett and county channels to find out whether any shelter is open, and do not go to one until it is announced.

Cities and towns

Each city has its own services and some have their own alerts. The county's evacuation zones, evacuation centers, and emergency alerts cover everyone, in every city and in unincorporated areas.

Sources

Checked on October 9, 2026. If a number or address here is wrong, please tell us at Keith@KMyers.me.