CHICAGO -- An enormous sheet of ice broke away from Lake Michigan's shore near Chicago, Illinois, amid westerly winds last month.
RELATED: Lake Michigan's mesmerizing ice formations
This time-lapse, captured by Travis McGhee, shows the sheet drifting away near Montrose Harbor.
RELATED: Winter Wonder: What is 'pancake ice' on Lake Michigan, how does it form?
The National Weather Service said on February 19 a westward breeze was "helping to break up and push some of our ice cover eastward".