Rehoboth Beach, DE – A tsunami alert in Delaware is uncommon, but even a small surge can quickly flood low-lying beach towns and inland bays, especially during high tide.
According to the National Weather Service and NOAA, a Tsunami Warning means dangerous coastal flooding and strong currents are expected or already occurring. Residents in Rehoboth Beach, Lewes, Bethany Beach, and communities along the Delaware Bay should move inland immediately. Avoid evacuation delays on coastal routes like Route 1, which can become congested as water rises.
A Tsunami Advisory signals strong currents and hazardous waves. While not a full evacuation, conditions near beaches, inlets, and bays can become life-threatening. Stay out of the water and away from docks, marinas, and shoreline areas.
A Tsunami Watch means a tsunami is possible following a distant earthquake. Residents should review evacuation routes, prepare emergency supplies, and be ready to act quickly if alerts escalate.
An Information Statement indicates no immediate threat.
Delaware’s flat terrain allows water to push inland rapidly, especially around the Inland Bays. Residents should enable emergency alerts, monitor local officials, and be ready to move inland immediately if a warning is issued.



