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Coastal Flood Advisory in Effect for Delaware Beaches Through Early Tuesday

Monday, March 16, 2026 at 6:06 PM

Minor coastal flooding up to one foot is expected along Delaware beaches and Inland Sussex County through 2 AM Tuesday, with potential road closures in low-lying areas.

Delaware’s coastal communities should prepare for minor flooding tonight as the National Weather Service has issued a Coastal Flood Advisory for Delaware Beaches and Inland Sussex County until 2:00 AM Tuesday. Up to one foot of water above ground level is expected in low-lying areas near shorelines and tidal waterways. The flooding will primarily impact lots, parks, and roads, with isolated road closures possible. The culprit is increasing south winds that are preventing water from draining properly from Rehoboth Bay and Little Assawoman Bay during low tide. Areas along the northern ends of these bays are especially vulnerable to minor tidal flooding impacts. Residents and visitors should avoid parking vehicles in flood-prone locations and never attempt to drive through flood waters, which may be deeper than they appear. The most vulnerable roadways typically flood first during these events. This is considered minor flooding, but it can still create hazardous driving conditions and costly vehicle damage. The advisory remains in effect through the overnight hours, with conditions expected to improve by Tuesday morning. For real-time water level information and local tide gauge data, residents can visit the National Water Prediction Service website at water.noaa.gov.

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