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Boreal Community Media

Great Lakes ice extent is

Mar 21, 2019 06:07AM ● By Editor

By Bill Steffen of WOOD-TV - March 21, 2019

Great Lakes ice extent is now down to 38%, much of that is in Lake Superior.  There is a little ice on the east shore of Lake Michigan, but the vast majority of Lake Michigan's ice is in Green Bay and from Traverse City north to the Mac. Bridge.  Great Lakes ice peaked at 81.9% on Mar. 9.  Due largely to wind breaking up ice, extent dropped to 37.6% by Mar. 17.

Great Lakes ice extent by week (from Environment Canada). 

Here's a record of ice on the Great Lakes by week.  We had 9 weeks when ice extent was above average for that week - 7 weeks when it was substantially above average. 

South Haven glerl picture from Wed. AM 

This is a picture of the ice at South Haven early Wed. AM. 

South Haven glerl image from Wed. evening.  

This is the same shot in the evening...look how much ice is gone...pushed out of the channel - moving away from shore and breaking up. 

Boreal Ship Spotter - larger view here