Great Lakes undergo incredible transformation in less than 1 month
January's polar vortex ushered subzero temperatures across the Midwest and Northeast and was the tipping point that transformed the Great Lakes into a frozen icescape. However, the Great Lakes no longer resemble what they did just a few short weeks ago. Every winter, frigid Arctic air chills the northern United States, causing ice to form on the Great Lakes. The extent of this ice depends on several variables, including the frequency and duration of Arctic intrusions.
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