NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
   ANZ500-202000-  1057 AM EDT Wed May 20 2026      .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...    Small Craft Advisories may be needed through Thursday as a cold  front slowly crosses the waters. The front will bring scattered to  numerous showers and thunderstorms this afternoon and evening.  Special Marine Warnings may be needed for stronger thunderstorms  during this time. Additional Small Craft Advisories will be needed  Thursday afternoon and evening in northerly channeling. Increased  onshore flow will keep Small Craft Advisory conditions going across  the waters at times Friday into the weekend.    $$
   ANZ539-202000-  Chester River to Queenstown MD-  1057 AM EDT Wed May 20 2026    REST OF TODAY  SW winds 5 to 10 kt. Waves 1 ft. A chance of  showers and tstms this afternoon.  TONIGHT  N winds 5 to 10 kt. Waves 1 ft. Showers likely with a  chance of tstms.  THU  NE winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers  likely.  THU NIGHT  NE winds 5 to 10 kt. Waves 1 ft. Showers likely.  FRI  E winds 10 kt with gusts to 20 kt. Waves 1 ft. Showers.  FRI NIGHT  E winds 10 kt. Waves 1 ft. Showers.  SAT  E winds 5 to 10 kt. Waves 1 ft. Showers.  SUN  E winds 5 to 10 kt. Waves 1 ft or less. A chance of showers.    Winds and waves higher and visibilities lower in and near tstms.    $$