NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   ANZ100-182100-  247 AM EDT Sat Jul 18 2026    .Synopsis for Stonington ME to Merrimack River Ma out to 60 NM...  Southwest winds increase today ahead of an approaching cold front,  bringing gusty conditions occasionally approaching gale force.  Showers and thunderstorms will cross the waters this afternoon and  evening. There will also be a return of wildfire smoke, which may  lower visibility at times. High pressure returns tonight and lingers  until the middle of next week when the next front approaches.    $$
   ANZ151-182100-  Penobscot Bay-  247 AM EDT Sat Jul 18 2026    SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON  THROUGH LATE TONIGHT    TODAY  SW winds around 5 kt, becoming S 15 to 20 kt with gusts up  to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds. A slight  chance of showers early this afternoon. A chance of showers and  tstms late. Patchy smoke early this afternoon. Areas of smoke late.  Vsby 1 to 3 NM this afternoon.  TONIGHT  SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to  5 ft. Wave Detail: S 5 ft at 6 seconds. Areas of smoke in the  evening. A chance of tstms. Showers, mainly in the evening. Vsby  1 to 3 NM.  SUN  NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.  Wave Detail: NW 2 ft at 3 seconds.  SUN NIGHT  W winds 10 to 15 kt with gusts up to 20 kt, diminishing  to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at  6 seconds.  MON  W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to  3 ft. Wave Detail: S 2 ft at 7 seconds.  MON NIGHT  SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S  2 ft at 4 seconds.  TUE  S winds 5 to 10 kt, increasing to 10 to 15 kt in the  afternoon. Seas 2 to 3 ft.  TUE NIGHT  SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to  4 ft. A chance of tstms. Showers.  WED  S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.  Showers. A chance of tstms in the afternoon.  WED NIGHT  S winds 10 to 15 kt with gusts up to 20 kt, becoming SW  5 to 10 kt after midnight. Seas 3 to 5 ft. Showers likely with a  chance of tstms in the evening, then a chance of showers after  midnight.    Winds and seas higher in and near tstms.    $$