🌊 US Weather Warriors MarineCast — Wednesday, June 10, 2026
Small Craft Advisories up across the Atlantic coastal waters and most of the Chesapeake — south winds crank tonight with seas building to 4-5 ft, occasional 7 ft offshore.
Today on the Water: SCAs are in effect from Fenwick south to the NC border and across much of the Chesapeake into this evening. Southerly flow holds through the day with showers and scattered thunderstorms, plus patchy fog on the Bay. Conditions deteriorate after dark as wind and seas peak overnight.
Atlantic Coastal Waters (Lewes → southern VA coast): South winds ramp to 20-25 kt tonight with gusts to 30 kt, easing to SW 15-20 kt after midnight. Seas build to 4-5 ft, occasionally 7 ft, with a SE swell at 5 ft / 7 seconds. Showers likely with a chance of thunderstorms this evening.
Delaware Bay: Southerly flow with a chance of showers. Seas stay manageable around 2 ft tonight before dropping to 1 ft or less after midnight. The Bay is the least rough of the three zones today but still under marginal SCA conditions in the channeling.
Chesapeake Bay & Delmarva-facing Waters: SW winds 10-15 kt with gusts to 20 kt, waves 2-3 ft (SW 2 ft @ 3 sec, E 1 ft @ 8 sec). Numerous showers and scattered thunderstorms with patchy fog reducing visibility. SCAs run until 8 PM on the northern and mid-Bay zones.
Wind & Seas Outlook: Peak wind and peak seas both hit tonight — S 20-25 kt gusting 30, seas 4-5 ft with occasional 7 ft offshore. Conditions improve markedly by Saturday night with light SW winds and 2 ft seas.
Marine Alerts:
- Small Craft Advisory — Fenwick Island DE to VA/NC border, until 4:00 AM Thu (NWS Wakefield)
- Small Craft Advisory — NJ coastal waters Sandy Hook to Little Egg, until midnight tonight (NWS Mount Holly)
- Small Craft Advisory — Northern Chesapeake & tidal Potomac, until 8:00 PM tonight (NWS Baltimore/Washington)
- Small Craft Advisory — Mid Chesapeake Pooles Island to Drum Point, until 8:00 PM tonight (NWS Baltimore/Washington)
Radar: KLWX, KDOX, and KAKQ all quiescent as of the 08:50Z scans — no cells within 50 nm of Delmarva right now. Models still carry showers and isolated storms into the afternoon and evening, so expect convection to fire later even though the scope is clean now.
Best Window to be Out: Morning hours on the Chesapeake or Delaware Bay before the afternoon storms ramp up — keep it inshore and stay tuned for thunderstorm development by midday.
Worst Window: Tonight offshore — S 20-25 kt gusting 30, seas 4-5 ft with 7 ft sets.
Bottom Line: Small boats stay in or stick to protected Bay water this morning only — offshore is a no-go with SCAs up and a rough night ahead.
— US Weather Warriors #DelmarvaWeather #MarineWeather #BoatingWeather