Hällskär Weather Warnings
High waves
Yellow wave height warning: Southern Sea of Bothnia, Mon 20.00 - Tue 9.00 Wave height warning: Rough waves occur at first. Significant wave height exceeds 2.5 meters. Possibly dangerous for recreational crafts and small boats.
FMI Open Data
Wind
Yellow wind warning for sea area: Sea of Åland and Sea of Bothnia, Mon 20.00 - Tue 9.00 Strong wind advisory: North to northeast wind 12 m/s at first.
FMI Open Data
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