š US Weather Warriors MarineCast 2026-09-21
Marine Weather Summary: Marine conditions are currently assessed as hazardous. Active alerts: Rip Current Statement, Coastal Flood Advisory, Small Craft Advisory Forecast text points to a higher-impact marine setup later in the period. Open atlantic waters from lewes to the southern virginia coast looks best today with winds N 10 to 15 kt, becoming NE 15 to 20 kt this afternoon; seas 2 to 4 ft; N winds 10 to 15 kt, becoming NE 15 to 20 kt this... Delaware bay near cape henlopen and cape may looks best today with winds NE 10 to 15 kt; seas 2 to 3 ft; NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: NE 2 ft at 6..., but conditions worsen by wed night with... The chesapeake bay and delmarva-facing waters looks best today with winds NE 10 to 15 kt; NE winds 10 to 15 kt. Waves 1 ft., but conditions worsen by wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts...
Atlantic Coastal Waters: ā¢ Summary: Open atlantic waters from lewes to the southern virginia coast looks best today with winds N 10 to 15 kt, becoming NE 15 to 20 kt this afternoon; seas 2 to 4 ft; N winds 10 to 15 kt, becoming NE 15 to 20 kt this afternoon. Seas..., but conditions worsen by wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; seas 12 to 14 ft, occasionally to 20 ft; Rain likely, mainly in the evening.. Official NWS marine alerts include Rip Current Statement, Coastal Flood Advisory, Small Craft Advisory. ā¢ Winds: Lightest winds appear in today, while the bumpiest winds show up in wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; seas 10 to 14 ft; A chance of showers in the evening.. ā¢ Seas: Highest seas/waves appear in wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; seas 10 to 14 ft; A chance of showers in the evening.. ā¢ Visibility / Weather: showers or thunderstorms are in the forecast at times ā¢ Best Window: Today with winds N 10 to 15 kt, becoming NE 15 to 20 kt this afternoon; seas 2 to 4 ft; N winds 10 to 15 kt, becoming NE 15 to 20 kt this afternoon. Seas...
Delaware Bay: ā¢ Summary: Delaware bay near cape henlopen and cape may looks best today with winds NE 10 to 15 kt; seas 2 to 3 ft; NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: NE 2 ft at 6..., but conditions worsen by wed night with winds NE 25 to 30 kt with gusts up to 40 kt; gusts 40 kt; seas 5 to 7 ft; A chance of showers in the evening.. Official NWS marine alerts include Rip Current Statement, Coastal Flood Advisory, Small Craft Advisory. ā¢ Winds: Lightest winds appear in today, while the bumpiest winds show up in wed night with winds NE 25 to 30 kt with gusts up to 40 kt; gusts 40 kt; seas 5 to 7 ft; A chance of showers in the evening.. ā¢ Waves: Highest seas/waves appear in wed night with winds NE 25 to 30 kt with gusts up to 40 kt; gusts 40 kt; seas 5 to 7 ft; A chance of showers in the evening.. ā¢ Visibility / Weather: showers or thunderstorms are in the forecast at times ā¢ Best Window: Today with winds NE 10 to 15 kt; seas 2 to 3 ft; NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: NE 2 ft at 6...
Chesapeake Bay: ā¢ Summary: The chesapeake bay and delmarva-facing waters looks best today with winds NE 10 to 15 kt; NE winds 10 to 15 kt. Waves 1 ft., but conditions worsen by wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; Rain.. .MARINE... Small Craft Advisories remain in effect in the main stem of the Bay through noon within northerly flow. There will likely be a small lull in the winds this... Official NWS marine alerts include Rip Current Statement, Coastal Flood Advisory, Small Craft Advisory. ā¢ Winds: Lightest winds appear in today, while the bumpiest winds show up in wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; Rain.. ā¢ Waves: Highest seas/waves appear in wed night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; Rain.. ā¢ Visibility / Weather: showers or thunderstorms are in the forecast at times ā¢ Best Window: Today with winds NE 10 to 15 kt; NE winds 10 to 15 kt. Waves 1 ft.
Marine Alerts:
- Rip Current Statement ā Delaware Beaches; Eastern Monmouth; Atlantic Coastal Cape May; Coastal Atlantic; Coastal Ocean 2026-09-21T04:10:00-04:00 2026-09-21T17:15:00-04:00
- Coastal Flood Advisory ā Anne Arundel 2026-09-20T20:03:00-04:00 2026-09-21T04:15:00-04:00
- Small Craft Advisory ā Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM; Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM; Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM; Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM 2026-09-21T01:49:00-04:00 2026-09-21T15:00:00-04:00
- Gale Watch ā Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM; Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM; Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM; Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM 2026-09-21T01:49:00-04:00 2026-09-21T15:00:00-04:00
- Small Craft Advisory ā Coastal waters from Fenwick Island DE to Chincoteague VA out 20 NM; Coastal waters from Chincoteague to Parramore Island VA out 20 NM 2026-09-21T01:50:00-04:00 2026-09-21T10:00:00-04:00
- Gale Watch ā Coastal waters from Fenwick Island DE to Chincoteague VA out 20 NM; Coastal waters from Chincoteague to Parramore Island VA out 20 NM 2026-09-21T01:50:00-04:00 2026-09-21T10:00:00-04:00
- +11 more NWS marine-relevant alert(s)
Boater Bottom Line: Best boating window looks like Today with winds NE 10 to 15 kt; NE winds 10 to 15 kt. Waves 1 ft.. Worst conditions look like Wed Night with winds NE 30 to 35 kt with gusts up to 45 kt; gusts 45 kt; seas 12 to 14 ft, occasionally to 20 ft; Rain likely, mainly in the evening.. Marine conditions are currently...
Safety: Check the latest official NWS marine forecast before heading out. Conditions can change quickly, especially near storms, inlets, and open water. Boaters should check the latest official NWS marine forecast before heading out. Watch for fast-changing conditions near inlets, bay mouths, bridges, thunderstorms, and coastal fronts. Any watches, warnings, or advisories mentioned here are issued by the National Weather Service. Current marine conditions are classified as hazardous.
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