Most of us would just called it cold, bone-chilling freaky cold, but if you wanna get fancy, call it: "...a polar vortex." "...hence are known as a polar vortex." "...the tragic polar vortex.
Here's what you need to know.
With wind chills dropping into -60 degrees territory in some unfortunate parts of the country, you've probably heard the polar vortex is to blame. A polar vortex forms kind of like a hurricane, a fast-moving blast of frigid air that circles counterclockwise around the North or South Poles.
Now normally a polar vortex doesn't come down as far into such dense population as it has. So what's it doing here?
Basically, if there's a warm air over Greenland or Alaska, air that's colder and denser pushes air south, resulting in frigid temps like the ones we're seeing across the U.S.
The white on this map shows you where the coldest air is. Right now it's located right on the US-Canada border. There's a little bit up here in Greenland and a big mass of cold air over Siberia where it's supposed to be.
Now the good news is the U.S. as a whole should start warming up later this week, though, by "warming," we mean getting into the 30s or so in parts of the Midwest. Before that, though, according to the weather channel, by Tuesday, more than 70 cities are in for record-breaking cold.
For Time, I'm Megan Murphy.
- 「即將體驗到、遭受到」- Be In For
Before that, though, according to the weather channel, by Tuesday, more than 70 cities are in for record-breaking cold.