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In the archipelagos of the northern Bay of Bothnia, remnants of rotten ice are still present in places. Along about 24°30’E there is drifting open ice and further south, along and just outside the coast down to Kala-joki, there is 10–40 cm thick, very close to open ice. The rest of the Baltic Sea is ice free.

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© 2020 Baltic Sea Ice Services - Marina Kirchhoff (BSH Rostock/Germany)
Bundesamt für Seeschifffahrt und Hydrographie (BSH)