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Charleston, SC Local Forecast Office

21NM NNE Altamaha Sound FL

Marine Point Forecast

[NOTICE]
    • Today

      Today:W wind 7 to 9 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

      SSW 9kt
      2ft

    • Tonight

      Tonight:SSW wind 7 to 9 kt becoming WSW after midnight. A slight chance of showers and thunderstorms before 11pm.   Seas around 2 ft.

      SSW 9kt
      2ft

    • Monday

      Monday:W wind 6 to 8 kt becoming SW in the afternoon. A chance of showers and thunderstorms after 2pm.   Seas 1 to 2 ft.

      W 8kt
      1-2ft

    • Monday Night

      Monday Night:SW wind 6 to 8 kt becoming W after midnight. A chance of showers and thunderstorms, mainly before 2am.   Seas 1 to 2 ft.

      SW 8kt
      1-2ft

    • Tuesday

      Tuesday:WNW wind 5 to 7 kt becoming E in the afternoon. Showers and thunderstorms likely, mainly after 2pm.   Seas around 1 ft.

      E 7kt
      1ft

    • Tuesday Night

      Tuesday Night:ENE wind around 7 kt. Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am.   Seas around 1 ft.

      ENE 7kt
      1ft

    • Wednesday

      Wednesday:ENE wind 8 to 12 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms after 2pm.   Seas 1 to 2 ft.

      ENE 12kt
      1-2ft

    • Wednesday Night

      Wednesday Night:E wind 8 to 10 kt. Showers and thunderstorms, mainly before 8pm.   Seas around 2 ft.

      E 10kt
      2ft

    • Thursday

      Thursday:ESE wind 7 to 10 kt. Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm.   Seas around 2 ft.

      ESE 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 6:47 am EDT Jul 20, 2025
Forecast Valid: 11am EDT Jul 20, 2025-6pm EDT Jul 26, 2025

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Detailed Forecast


Today
W wind 7 to 9 kt becoming S in the afternoon. Sunny. Seas around 2 ft.
Tonight
SSW wind 7 to 9 kt becoming WSW after midnight. A slight chance of showers and thunderstorms before 11pm. Seas around 2 ft.
Monday
W wind 6 to 8 kt becoming SW in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 to 2 ft.
Monday Night
SW wind 6 to 8 kt becoming W after midnight. A chance of showers and thunderstorms, mainly before 2am. Seas 1 to 2 ft.
Tuesday
WNW wind 5 to 7 kt becoming E in the afternoon. Showers and thunderstorms likely, mainly after 2pm. Seas around 1 ft.
Tuesday Night
ENE wind around 7 kt. Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Seas around 1 ft.
Wednesday
ENE wind 8 to 12 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms after 2pm. Seas 1 to 2 ft.
Wednesday Night
E wind 8 to 10 kt. Showers and thunderstorms, mainly before 8pm. Seas around 2 ft.
Thursday
ESE wind 7 to 10 kt. Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Seas around 2 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: 6:47 am EDT Jul 20, 2025
Forecast Valid: 11am EDT Jul 20, 2025-6pm EDT Jul 26, 2025
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