🌊 US Weather Warriors MarineCast — Wednesday, July 15, 2026
Small Craft Advisory on the mid and lower Chesapeake through 7 AM, then a hot, hazy day with light winds behind it.
Today on the Water: SCA in effect on the Chesapeake from Sandy Point south through Smith Point, plus Tangier Sound and Bloodsworth waters, until 7 AM EDT. Heat Advisories cover most of Delmarva through 8 PM — hydrate hard and expect areas of smoke/haze cutting visibility. Radar is quiescent across the region, no cells within 50 nm.
Atlantic Coastal Waters (Lewes → southern VA coast): SW 10–15 kt easing to S around 5 kt as the day wears on. Seas near 2 ft on a mixed SW short-period and E long-period swell. Smoke/haze possible; no convection on radar.
Delaware Bay: Light and manageable. Winds shifting through S at 5–10 kt with seas 1 ft or less. Cleanest window of the local waters today outside the SCA zone.
Chesapeake Bay & Delmarva-facing Waters: SCA through 7 AM on the middle and lower Bay from southerly channeling — stay in until it lifts. Behind it, winds relax to SW 10–15 kt going S 5 kt, waves around 2 ft. Sub-SCA NW flow arrives Thu–Fri.
Wind & Seas Outlook: Lightest winds Thu into Fri (N around 5 kt, seas 1–2 ft). Peak hazard Sat night: SW 15–20 kt gusting 25, seas 4–5 ft occasionally to 7 ft with showers and thunderstorms.
Marine Alerts:
- Small Craft Advisory — mid/lower Chesapeake, Tangier Sound, Bloodsworth waters — until 7:00 AM EDT
- Heat Advisory (NWS Mount Holly) — DE beaches, Kent, Sussex, coastal NJ — until 8:00 PM EDT
- Heat Advisory (NWS Wakefield) — Lower Eastern Shore MD, Accomack, VA Northern Neck — until 8:00 PM EDT
Best Window to be Out: Late morning through mid-afternoon after the SCA drops at 7 AM — winds ease steadily and seas stay around 2 ft on the Bay and coast.
Worst Window: Pre-dawn to 7 AM on the middle and lower Chesapeake while the SCA is live.
Bottom Line: Wait out the morning SCA on the Bay, then it's a workable — if hot and hazy — day on the water before the weekend deteriorates.
— US Weather Warriors #DelmarvaWeather #MarineWeather #BoatingWeather