TRAVERSE CITY, Mich. — A pocket of arctic air has shuttled frigid temperatures across much of the country.
The blast originated over the North Pole and northern Canada before a shift in jet stream conditions allowed it to swing south to the Great Lakes region, National Weather Service Meteorologist Nick Schwartz said.
"It's a type of cold air we certainly haven't seen yet this winter," he said.
In northern Michigan, forecasts predict overnight lows will reach zero, with wind chills reaching 10- to 15-below zero.
Forecasters predict lake-effect snowfall accompanying the low temperatures as the arctic air runs over warmer air above Lake Michigan.
Details for this story were provided by The Record-Eagle in Traverse City, Mich.