NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
   ANZ500-180800-  458 PM EDT Fri Jul 17 2026      .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...    A front will return northward as a warm front late tonight into  Saturday morning. A stronger cold front will drop through the region  Saturday night into Sunday. High pressure will build north of the  area Monday. Small Craft Advisories may be needed for portions of  the waters through Saturday night, and again Monday night into  Tuesday. Special Marine Warnings will likely be needed Saturday  afternoon and evening.    $$
   ANZ539-180800-  Chester River to Queenstown MD-  458 PM EDT Fri Jul 17 2026    REST OF THIS AFTERNOON  NE winds 5 kt. Waves flat. Smoke.  TONIGHT  SE winds around 5 kt. Waves 1 ft or less. Smoke.  SAT  S winds 5 to 10 kt. Gusts up to 20 kt in the late morning and  afternoon. Waves 1 ft. Showers with tstms likely. Areas of smoke.  Vsby 1 NM or less.  SAT NIGHT  SW winds 5 to 10 kt. Waves 1 ft. Showers with tstms  likely.  SUN  NW winds 5 to 10 kt. Waves 1 ft.  SUN NIGHT  NE winds around 5 kt. Waves 1 ft.  MON  SE winds 5 to 10 kt. Waves 1 ft or less.  TUE  S winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in  the afternoon. A chance of tstms. Showers likely through the night.    Winds and waves higher and visibilities lower in and near tstms.    $$