This blast of cold weather is due to activity of the polar vortex.

Areas that get lake-effect snow—or snow that develops when cold air moves over warmer bodies of water, creating significant ... The polar vortex is a large area of low pressure and cold air ...

Firstly, the Great Lakes’ surface water temperatures are still ... Michigan gets heavy snow from the Polar Vortex only in the form of lake-effect snow. Finally, I have a bigger thought for ...

1 (UPI) --The first few days of the new year are expected to bring heavy snow and frigid temperatures in the form of a polar vortex to the ... 3 feet of lake-effect snow over the course of the ...