Anchorage off Calf Island
Fort Warren
Past nights from AIS in Jun–Aug 2024 and Jun–Sept 2025
Where boats stayed: 42.333° N, 70.900° W
10nights
5boats
Nights by wind direction
| From | Nights | Boats | Wind 20 kt+ | Windiest night (area) |
|---|---|---|---|---|
| N | 1 | 1–2 | – | 8.1 ktgusts 14.1 kt |
| SE | 1 | 1–2 | – | 6.3 ktgusts 10.5 kt |
| SW | 8 | 4 | – | 9.9 ktgusts 17.5 kt |
Nearby anchorages
AIS shows only boats that carry it and that a receiver hears, so no boats on AIS never means an anchorage is empty or unsuitable. Boats that live here (at their own berth or mooring, or a week or more in one place) are left out, and boats in marinas and at piers are counted apart from the anchorage's nights. Not for navigation.