Canadian Ice Service

The Canadian Ice Service (CIS) is the leading authority for ice and iceberg information in Canada's navigable waters. It is part of Environment and Climate Change Canada’s Meteorological Service.

Ice in its many forms has a direct impact on the lives of Canadians. In southern Canada, from late fall to early spring, some Canadian waters become impassable or hazardous due to ice. Portions of Canada’s arctic waters become navigable during the summer season, but ice and icebergs are a concern for safe transportation.

The CIS provides accurate and timely information on ice and icebergs in Canada's navigable waters. This information helps:

protect Canadians, their property and their environment, by warning of dangerous ice conditions
support safe shipping and efficient maritime operations
provide essential ice knowledge to support sound environmental policies

Services and information

The CIS creates information such as:

maps
charts
alerts and forecasts
reports
newsletters

This information is useful to:

the marine industry
all levels of government
communities
researchers
meteorologists

Latest ice conditions

Interactive map of ice conditions in Canada’s navigable waters.

Ice products and publications

Ice and iceberg bulletins, charts, images, maps, manual.