Disney on Ice Green Bay Seating Chart

Simplified ice chart and reference charts

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

FINNISH ICE REPORT 23.12.2021

New-ice formation continues.

In the northern Bay of Bothnia, 10-30 cm thick fast ice to Kemi 3 and Kattilankalla. Farther out, approximately to Kemi 1 and Oulun portti, new ice. Off Raahe 10-20 cm thick fast ice in the inner archipelago. Farther out thin ice approximately to Raahe lighthouse.

In the southern Bay of Bothnia, 10-25 cm thick fast ice in the archipelago. Off the coast new-ice formation.

In the Quark, 10-25 cm thick fast ice in the Vaasa archipelago to Storhästen. Farther out new ice and new-ice formation to Ensten.

In the Sea of Bothnia, level ice in the inner archipelago. Off the coast new-ice formation.

In the Archipelago Sea and in the western Gulf of Finland, thin ice and new-ice formation in the inner archipelago.

In the eastern Gulf of Finland, thin ice in the inner archipelago. Farther out new-ice formation to the line Rankki-Nerva. In the Bay of Vyborg 10-20 cm thick fast ice.

In the Lake Saimaa and in the Saimaa Canal, 5-25 cm thick ice.

Icebreakers: Otso and Kontio assist in the Bay of Bothnia. Voima assists in the eastern Gulf of Finland. Meteor assists in the southern Lake Saimaa and Saimaa Canal. Protector and Calypso assist in the northern Lake Saimaa.

Assistance restrictions: Minimum ice class and deadweight required of assisted vessels:
Tornio, Kemi, Oulu and Raahe, I of more than 2000 tons.
Kalajoki and Pietarsaari, II of more than 2000 tons.
Kokkola and Vaasa, I of more than 2000 tons.
Loviisa, Kotka and Hamina, II of more than 2000 tons.
Lake Saimaa and Saimaa Canal, II of more than 2000 tons.

Alterations to the assistance restrictions: Minimum ice class and deadweight required of assisted vessels from 25th December:
Tornio, Kemi, Oulu and Raahe, IB of more than 2000 tons.
Kalajoki and Pietarsaari, I of more than 2000 tons.
Mussalo, II of more than 2000 tons.

Vessels bound for Gulf of Bothnia ports in which assistance restrictions apply, shall when passing latitude 60° 00' N report their nationality, name, destination, ETA and speed to ICE INFO on VHF channel 78. This report can also be given directly by telephone to +46 10 492 7600.

Vessels bound for Finnish or Swedish ports with assistance restrictions in the Quark or the Bay of Bothnia shall, 20 nautical miles before Nordvalen Lighthouse (63° 32,15' N 20° 46,60' E), report in accordance with the instructions for winter navigation to Bothnia VTS on VHF channel 67.

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 assistance 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.

 Products are generated using E.U. Copernicus Marine Service Information.

Explanation of chart's Finnish words

• jäätä: ice

• vettä: water

• haurasta: rotten ice

Ice extent

Daily ice extent on the Baltic Sea (km²). The blue envelope curves show the largest and smallest ice extents (min–max) and fractiles (25 %–75 %) of the ice seasons 2007–2020. The green line (50 %) is the median extent of the seasons 2007–2020. The black dotted line is the previous ice season's (2020–2021) ice extent, and the solid black line is the current ice season's (2021–2022) extent.

The values are rounded so that areas less than 100 km² are with one significant digit, 100–1000 km² areas are with two significant digits and larger areas with three significant digits.

More information

• Knowledge about sea ice

• Ice statistics and past seasons´ descriptions

• Baltic icebreaker management

• CMEMS: Ice chart data in netcdf format

• Sea surface temperatures in Marine weather chart

Disney on Ice Green Bay Seating Chart

Source: https://en.ilmatieteenlaitos.fi/ice-conditions

Share this post