Ice Forecasts for the Great Lakes

Choose a Province or Territory

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* NOTE: Corrected and/or amended bulletins are listed first *

 
FICN19 CWIS 301545
Ice forecasts for the Great Lakes issued by Environment Canada at
12:00 p.m. EDT Sunday 30 March 2025 for today tonight and Monday.
The next scheduled forecasts will be issued at 12:00 p.m. Monday.

Western Lake Superior.
Open water except 2 tenths thick lake ice near parts of the shores.
Consolidated thick lake ice in Black Bay, Nipigon Bay, Chequamegon
Bay and eastern Thunder Bay.

Eastern Lake Superior.
Open water except 9 tenths thick lake ice near parts of the southern
shore. Consolidated medium lake ice along parts of the shores.

Whitefish Bay.
Ice pressure warning in effect.
7 tenths thick lake ice. Consolidated thick lake ice in the eastern
section. Strong ice pressure along parts of the western and southern
shores developing Monday afternoon.

North Channel.
8 tenths thick lake ice except consolidated thick lake ice in the
eastern section and extreme western section.

Northern Lake Huron.
Open water except 1 tenth thick lake ice near parts of the shores in
the northwestern section. 5 tenths thick lake ice along parts of the
Bruce Peninsula.

Southern Lake Huron.
Open water except 3 tenths thick lake ice in the extreme
northeastern section.

Georgian Bay.
2 tenths thick lake ice. CONSOLIDATED rotten thick lake ice along
the northeastern shore.

Lake St. Clair
Western Lake Erie.
Open water.

Eastern Lake Erie.
Open water except 9 tenths thick lake ice in the extreme eastern
section.

Western Lake Ontario.
Open water.

Eastern Lake Ontario.
Open water except 1 tenth thick lake ice near parts of the shores in
the extreme northeastern section.

Northern Lake Michigan.
Open water except 2 tenths thick lake ice east of Beaver Island.

Southern Lake Michigan.
Open water.

Green Bay.
Open water except consolidated thick lake ice in Bays de Noc.

The Lake Michigan ice description has been prepared by the U.S.
National Ice Center.

End