‘Once in a lifetime’ snow hits parts of the U.S. South
A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven’t seen ...
A powerful Polar Vortex in the stratosphere brings frigid temperatures to US
The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...
What is a polar vortex?
This blast of frozen temperatures is tied to a polar vortex... but what is that? Air spins around the notoriously cold North and South Poles. When the air is spinning fast, it's stable, but when it is ...
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Arctic blast to send Virginia temperatures plunging this week
Erin Davis/Axios Visuals All of Virginia will be freezing early this week. Why it matters: The hazardous cold could be a public health risk, threaten to burst pipes, and stress electricity grids. The ...
A polar vortex has brought arctic air to the U.S. including DC area
WASHINGTON — Get ready for extreme cold weather in D.C. and most of the U.S. over the next few days. The polar vortex has ...