Coastal Flood — Delaware Beaches, Delaware

2025-08-21 to 2025-08-22 · Delaware Beaches, Delaware

Event narrative

Widespread roadway flooding was reported in the tidal areas of the county, and there were numerous road closures. Many homes and other buildings were surrounded by flood waters with some minor property damage occurring. The tide gauge at Lewes reached 7.70 feet MLLW, the tide gauge at Indian River Inlet reached 6.22 feet MLLW, the tide gauge at Dewey Beach reached 5.18 feet MLLW, and the tide gauge at Rosedale Beach reached 6.27 feet MLLW.

Wider weather episode

Storm surge from Hurricane Erin and an upcoming New Moon resulted in moderate to locally major high tide levels on the night of August 21, 2025 across coastal areas of Delaware.

Source: NOAA Storm Events Database, event_id 1277563. Narrative written by the NWS forecast office that issued the report.