Simplified ice chart and reference charts

Normal situation Previous ice map Ice map of the previous year Icebreakers

Previous ice map

FINNISH ICE REPORT 22.05.2017

The ice is melting.

In the northern Bay of Bothnia there is rotten fast ice in the archipelago to Keminkraaseli. There is very close ice in places along the fairways to Kemi and Oulu, otherwise open water.

In the southern Bay of Bothnia there is ice-free.

Icebreakers: Otso assists in the Bay of Bothnia.

Restrictions to navigation: Minimum ice class and deadweight required of assisted vessels:
Tornio and Kemi, IA of more than 2000 tons.
Oulu, I of more than 2000 tons.

Vessels bound for Gulf of Bothnia ports in which traffic restrictions apply shall, when passing the latitude 60°00'N, report their nationality, name, port of destination, ETA and speed to ICE INFO on VHF channel 78. This report can also be given directly by phone +46 31 699 100.

About the charts

The ice chart of the whole Baltic Sea (pdf) is published in the autumn twice a week (Monday and Thursday) and daily when the amount of ice increases until until ice break-up in spring. It represents current ice situation, ice breaker positions and traffic restrictions in the Baltic Sea.

The simplified charts are updated once a week at the latest on Tuesday morning. The first one represents measured level ice thicknesses, ice coverage and sea surface temperature. The reference charts represent average, 1965 – 1986, ice situation on that day (= normaali), last week´s situation, last year´s situation and the positions of the ice breakers.

Explanation of chart's finnish words

  • jäätä: ice
  • haurasta: rotten ice

 

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