🌊 US Weather Warriors MarineCast — Saturday, August 22, 2026
Showers and a chance of thunderstorms are the main concern today, with easterly winds and 2 to 3 foot seas offshore.
Today on the Water: No active marine alerts, but this is a caution day with showers across the region and thunderstorms possible. Radar shows 22 cells within 50 nm of Delmarva; cells near and west of Dover moving SE are heading offshore, though showers remain in the marine forecast. Expect easterly flow today, with the rougher water offshore.
Atlantic Coastal Waters (Lewes → southern VA coast): E winds 10 to 15 kt today with seas 2 to 3 ft. The dominant swell is NE 3 ft at 7 seconds, with a smaller SE component. Showers are expected. Tonight, winds turn SE 5 to 10 kt before becoming SW after midnight; showers and thunderstorms remain possible, with patchy fog after midnight.
Delaware Bay: Conditions are lighter than offshore, but showers and a chance of thunderstorms remain in play. Tonight brings E winds 5 to 10 kt, becoming S after midnight, with seas around 2 ft. Patchy fog after midnight may reduce visibility.
Chesapeake Bay & Delmarva-facing Waters: SE winds run 5 to 10 kt today, with gusts up to 15 kt possible. Showers are likely, with a chance of thunderstorms. Waves include a 1-foot northerly component at 3 seconds and an easterly component at 4 seconds. Heavier showers or storms could briefly worsen conditions.
Wind & Seas Outlook: The Atlantic’s highest seas hold at 2 to 3 ft today and tonight. Chesapeake winds increase to S 10 to 15 kt Wednesday night. The lightest overall conditions arrive Tuesday night, with 5 kt winds and 1-foot waves on the Chesapeake.
Marine Alerts: No active marine alerts.
Best Window to be Out: A short trip in protected Chesapeake or Bay waters after local showers move out offers the better option today; avoid committing offshore.
Worst Window: Tonight offshore, when showers, possible thunderstorms, 2 to 3 foot seas, and patchy fog overlap.
Bottom Line: Launch only for a flexible, nearshore or protected-water plan today; offshore conditions are manageable but unsettled.
— US Weather Warriors #DelmarvaWeather #MarineWeather #BoatingWeather