Polar Vortex is Causing the Cold
What is a Polar Vortex and Where is it Found?
A polar vortex is a large, whirling area of low pressure, found over both North and South poles. The polar vortex is semi-permanent and strongest in winter, weakening in the summer. But no worries, polar vortices have moved southward before, but this time it is being pushed as far south as the Great Lakes area! The Northern Hemisphere polar vortex rotates counterclockwise and is normally centered in Canada’s Baffin Island and over northeast Siberia. To help, experts advise people to stay home during the polar vortex and to keep your pets inside also.
Cold in Chicago
Chicago during the polar vortex
Someone during the cold of the polar vortex
A walk in the polar vortex--pleasant, isn't it?
There’s more to this polar vortex than meets the eye. It doesn’t just affect humans, but animals too. Dogs can lose their scent in the huge snowbanks and get lost. So what can you do to keep this from happening? You can keep your dog on a leash, or just keep it inside. You always need to know where they are. So what is this polar vortex? The polar vortex, master of cold, will stop at nothing and only the jet stream is able to hold it up.
National Air and Space Association article--http://www.nasa.gov/content/goddard/polar-vortex-enters-northern-us/
National Geographic article--http://news.nationalgeographic.com/news/2013/13/140106-record-cold-snap-united-states-midwest-jetstream/