Great Lakes Ice Charts

Example of the east and west 
         Great Lakes charts

Great Lakes East Composite Chart
Great Lakes West Composite Chart

Description: A graphical representation of the current ice conditions, classified by ice concentration, stage of development and ice floe size. This product is created in conjunction with CIS as a NAIS product. Charts are produced in color and black and white.

Coverage Area:
Great Lakes East - covers Lakes Huron, Erie, and Ontario
Great Lakes West - covers Lakes Superior and Michigan

Format: GIF

Periodicity: Daily

Dissemination: USNIC Website, CIS Website

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