WILMINGTON, Del. – A strong coastal storm will bring heavy rain, gusty winds, and the season’s first significant coastal flooding risk to Delaware and southern New Jersey beginning Sunday afternoon. Roads near Delaware Bay and the lower Christina River could see water overtop during high tide cycles, making travel hazardous for coastal communities.
According to the National Weather Service in Mount Holly, a Coastal Flood Watch remains in effect from Sunday afternoon through Monday evening for New Castle and Delaware Counties in Delaware and Salem County in New Jersey. Forecasters warn that one to two feet of inundation above ground level is possible in low-lying zones, especially along I-295, Route 9, and areas adjacent to tidal waterways. Drivers should avoid flooded roads and check for detours before commuting.
Winds are expected to strengthen Sunday, with gusts near 30 mph along the Delaware Bay shoreline. Periods of heavy rain could lead to minor property damage or temporary road closures near the coast. Residents are urged to move vehicles to higher ground and secure outdoor items ahead of rising tides.
The system should exit the area by late Monday, followed by cooler, breezy conditions midweek — a clear reminder that fall’s chill is arriving fast. Tuesday and Wednesday look mostly sunny and calmer, offering a break for outdoor cleanup and early Halloween decorating.
Five-Day Forecast for Wilmington, DE:
Sat: 71/54 – Cloudy with showers developing; 50% chance of rain.
Sun: 63/55 – Breezy, periods of heavy rain; coastal flooding possible.
Mon: 68/55 – Showers early; flood threat easing by afternoon.
Tue: 68/49 – Partly sunny; cooler, breezy.
Wed: 64/44 – Mostly sunny; crisp fall air returns.
