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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind 5 to 8 kt. A slight chance of showers and thunderstorms after 3pm. Seas around 2 ft.

      S 8kt
      2ft

    • Tonight

      Tonight:SW wind 5 to 9 kt. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 1am. Seas around 2 ft.

      SW 9kt
      2ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.

      ⇑S 8kt
      2ft

    • Saturday Night

      Saturday Night:S wind 6 to 9 kt becoming SW after midnight. A chance of showers and thunderstorms. Seas around 2 ft.

      S 9kt
      2ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.

      ⇑S 7kt
      2ft

    • Sunday Night

      Sunday Night:S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before 2am. Seas around 2 ft.

      S 8kt⇓
      2ft

    • Monday

      Monday:Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.

      Light Wind
      2ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8pm. Seas around 2 ft.

      Light Wind
      2ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming ENE 14 to 19 kt in the morning. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft building to 3 ft.

      ⇑ENE 19kt
      Waves Building3ft


Associated Zone Forecast which includes this point

Last Update: 8:32 am EDT Sep 11, 2026
Forecast Valid: 1pm EDT Sep 11, 2026-6pm EDT Sep 17, 2026

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Detailed Forecast


This Afternoon
S wind 5 to 8 kt. A slight chance of showers and thunderstorms after 3pm. Seas around 2 ft.
Tonight
SW wind 5 to 9 kt. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 1am. Seas around 2 ft.
Saturday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Saturday Night
S wind 6 to 9 kt becoming SW after midnight. A chance of showers and thunderstorms. Seas around 2 ft.
Sunday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A slight chance of thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Sunday Night
S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms before 2am. Seas around 2 ft.
Monday
Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Monday Night
Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 8pm. Seas around 2 ft.
Tuesday
Variable winds less than 5 kt becoming ENE 14 to 19 kt in the morning. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas 1 ft building to 3 ft.

Winds and seas higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 31.62°N 81.12°W
Last Update: 8:32 am EDT Sep 11, 2026
Forecast Valid: 1pm EDT Sep 11, 2026-6pm EDT Sep 17, 2026
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