You’ve probably heard the phrase “Polar Vortex” a lot the last couple of weeks, as parts of the US are in a deep freeze with air coming down from the Arctic. While we won’t see temperatures here in the Southeast that are nearly as cold as those in MN and WI, it’s going to be the coldest air of the year so far. Here is a good explanation of what the polar vortex is (spoiler–it’s a totally natural thing) from a television meteorologist in Tallahassee FL at WCTV: https://www.wctv.tv/content/news/Cold-air-may-stick-around-for-a-while-504824381.html.