🌊 US Weather Warriors MarineCast — Wednesday, September 16, 2026
Winds have eased across Delmarva waters, with the calmest practical window arriving tonight before winds and seas build later in the period.
Today on the Water:
Earlier elevated southerly winds have weakened, with recent maximum gusts around 10 to 15 knots.
Radar is quiet: no active cells within 50 miles of Delmarva, though showers are in the forecast at times.
Conditions are manageable today, but the better boating window is tonight.
Atlantic Coastal Waters (Lewes → southern VA coast):
Specific daytime wind and sea details are limited for the coastal waters.
Tonight turns south around 5 knots with seas near 2 feet; the east wave component is 2 feet at 7 seconds.
Showers are possible at times, but radar currently shows no nearby cells.
Delaware Bay:
Specific Wednesday conditions are limited for the Bay.
Thursday starts south at 5 to 10 knots with seas 1 foot or less, then winds increase to 10 to 15 knots with gusts up to 20 knots during the afternoon.
Seas build to around 2 feet Thursday afternoon; showers remain possible at times.
Chesapeake Bay & Delmarva-facing Waters:
Southerly winds have eased from earlier elevated levels, with recent gusts around 10 to 15 knots.
Tonight, south winds fall to 5 knots with waves less than 1 foot.
Radar is quiescent across the Bay corridors, despite showers being in the broader forecast.
Wind & Seas Outlook:
The next notable build arrives Friday night, with northeast winds 10 to 15 knots and gusts up to 20 knots; coastal seas reach 3 to 4 feet, occasionally 6 feet.
The roughest overall period is Sunday night, with 10 to 15 knot southerly winds, gusts up to 20 knots offshore, and showers possible.
Marine Alerts: No active marine alerts.
Best Window to be Out: Tonight—especially Chesapeake Bay and sheltered waters—with south winds near 5 knots; expect around 2-foot seas if heading offshore.
Worst Window: Sunday night, when winds, seas, and shower chances combine for the least comfortable ride.
Bottom Line: Launch today only with a plan for easing conditions tonight, while keeping the later-week northeast sea build in mind.
— US Weather Warriors #DelmarvaWeather #MarineWeather #BoatingWeather