🌊 US Weather Warriors MarineCast — Tuesday, August 25, 2026
Marine Weather Statement remains in effect for portions of the lower Chesapeake until 7:00 AM EDT; otherwise, light winds dominate today before conditions build Wednesday night and Thursday.
Today on the Water:
The radar is quiet across Delmarva, with no active cells within 50 miles of the coast or Bay corridors.
Chesapeake waters start with north winds 10 to 15 kt and gusts to 20 kt early, easing to northeast 5 to 10 kt this afternoon.
The more consequential stretch arrives Wednesday night into Thursday, with south winds, gusts to 25 kt, showers, and thunderstorms.
Atlantic Coastal Waters (Lewes → southern VA coast):
Data is limited for today’s specific coastal wind and sea forecast.
The rougher period is Thursday: south winds 10 to 15 kt with gusts up to 25 kt, seas around 3 ft, and a chance of showers and thunderstorms.
The best coastal window in the forecast period is Saturday night, with northeast winds 5 kt and seas around 2 ft.
Delaware Bay:
Data is limited for today’s specific Bay wind and sea forecast.
Wednesday looks lighter, with northeast winds around 5 kt becoming southeast in the afternoon and seas 1 ft or less.
Thursday turns choppier with south winds 10 to 15 kt, gusts up to 25 kt, seas 2 to 3 ft, and showers likely with a chance of thunderstorms.
Chesapeake Bay & Delmarva-facing Waters:
North winds 10 to 15 kt with gusts up to 20 kt early become northeast 5 to 10 kt with gusts up to 15 kt this afternoon; waves run 2 to 3 ft.
Tonight is the quietest local window: west winds 5 kt and flat waves.
South winds increase to 15 to 20 kt Wednesday night, with gusts to 25 kt before easing after midnight; showers are possible after midnight.
Wind & Seas Outlook:
The peak wind period is Wednesday night into Thursday, led by south winds and gusts up to 25 kt.
Thursday also brings the highest coastal seas, around 3 ft offshore and 2 to 3 ft in Delaware Bay.
Marine Alerts:
- Marine Weather Statement for portions of the lower Chesapeake Bay, expires 7:00 AM EDT.
Best Window to be Out: Tonight on Chesapeake Bay: west winds 5 kt with flat waves.
Worst Window: Wednesday night into Thursday, when south winds, 25-kt gusts, showers, and thunderstorms build.
Bottom Line: Today improves after the early Chesapeake breeze, but plan around the sharper south-wind and thunderstorm setup Wednesday night into Thursday.
— US Weather Warriors #DelmarvaWeather #MarineWeather #BoatingWeather