NWS Marine Forecast


   ANZ500-190800-  1036 PM EDT Fri Jul 18 2025      .SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...    A front stalls across the area today, then returns north as a warm  front on Saturday. A stronger cold front moves through the area  Sunday night. Canadian high pressure builds to the north into early  next week. Daily shower and thunderstorm chances continue through  the weekend, with any stronger thunderstorm posing a risk to  mariners. Small Craft Advisories may be needed Sunday night into  Monday morning.    $$
   ANZ535-190800-  Tidal Potomac from Key Bridge to Indian Head-  1036 PM EDT Fri Jul 18 2025    REST OF TONIGHT  Light winds. Waves flat. A chance of showers and  tstms. Patchy fog late this evening. Patchy fog. Vsby 1 NM or less...  increasing to 1 to 3 NM.  SAT  S winds around 5 kt. Waves 1 ft. Showers likely with a chance  of tstms. Patchy fog. Vsby 1 to 3 NM.  SAT NIGHT  S winds around 5 kt. Waves 1 ft or less. Showers likely  with a chance of tstms. Vsby 1 NM or less.  SUN  W winds around 5 kt. Waves 1 ft. A chance of showers and  tstms.  SUN NIGHT  NW winds 5 kt. Waves less than 1 ft.  MON  N winds 5 kt. Waves less than 1 ft.  MON NIGHT  NE winds around 5 kt. Waves 1 ft.  TUE  E winds around 5 kt. Waves 1 ft.  WED  S winds around 5 kt. Waves 1 ft.    Winds and waves higher and visibilities lower in and near tstms.    $$