Temperature Swings Create Big Changes in Great Lakes Ice Coverage

After hitting a seasonal high of 88.4% ice coverage over a week ago, ice on the Great Lakes melted quickly following warmer temperatures and rain.

Now ice coverage is climbing again.

Total ice coverage on the Great Lakes peaked on February 12-13 at 88.4%. Over the next week ice coverage hovered around 80% before dropping quickly.

• February 20 = 79.3%
• February 21 = 69.2%
• February 22 = 67.0%
• February 23 = 61.9%
• February 24 = 70.3%

With the record cold temperatures we face in the week to come we are sure to see those numbers continue to climb.

Watch an animated graphic of ice coverage on the Great Lakes over the last 30 days.

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