https://en.wikipedia.org/wiki/Polar_vortex - 17 hours ago
A polar vortex is an upper level low-pressure area, that lies near the Earth's pole.
There are two polar vortices in the Earth's atmosphere, which overlie the North, ...
"The polar vortex is not a recently discovered phenomenon; in fact, it has been
talked about in the meteorological world for decades," AccuWeather.com Senior
Apr 7, 2016 ... You're hearing the term 'Polar Vortex' again -- and it's spring. We examine its role
in chilly April in the East.
Feb 14, 2016 ... As each hour passes, more and more television and radio reporters are
attributing the insane cold to a “polar vortex” up in northern Canada.
When temperatures plunged into the sub-zero range for much of the country in
early 2014, the term "polar vortex" became a household expression. Sure ...
Dec 22, 2015 ... The infamous polar vortex is actually linked to the unusual warm winter weather
in the eastern U.S., though that pattern could soon flip.
The polar vortex is a large area of low pressure and cold air surrounding both of
the Earth's poles. It ALWAYS exists near the poles, but weakens in summer and ...
The extensive region of colder dark blue temperatures are indicative of stronger
polar vortex winds. An anomaly is the difference from a long term average for the
Feb 12, 2016 ... The Northeast is being warned to brace for what could be the coldest
temperatures in over a decade this Valentine's Day weekend.
A polar vortex is a system of upper-level winds that circle around one of the poles
. Such circumpolar wind systems exist most of the time at both the North and ...