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Early 2019 North American cold wave. In late January 2019, a severe cold wave caused by a weakened jet stream around the Arctic polar vortex [5] hit the Midwestern United States and Eastern Canada, killing at least 22 people. [3][4] It came after a winter storm brought up to 13 inches (33 cm) of snow in some regions from January 27–29, and ...
A more typical weak tropospheric polar vortex on January 5, 2014. A circumpolar vortex, or simply polar vortex, is a large region of cold, rotating air; polar vortices encircle both of Earth's polar regions. Polar vortices also exist on other rotating, low- obliquity planetary bodies. [1] The term polar vortex can be used to describe two ...
A sudden stratospheric warming (SSW) is an event in which polar stratospheric temperatures rise by several tens of kelvins (up to increases of about 50 °C (90 °F)) over the course of a few days. [1] The warming is preceded by a slowing then reversal of the westerly winds in the stratospheric polar vortex. SSWs occur about six times per decade ...
The January–March 2014 North American cold wave was an extreme weather event that extended through the late winter months of the 2013–2014 winter season, and was also part of an unusually cold winter affecting parts of Canada and parts of the north-central and northeastern United States. [5] The event occurred in early 2014 and was caused ...
The polar vortex is a large area of low-pressure and cold air surrounding both of the Earth’s poles, according to the weather service. It always exists near the poles.
"A shift of the polar vortex will be at the heart of the brief cold blast in the Northeast," AccuWeather Chief On-Air Meteorologis. Skip to main content. 24/7 Help. For premium support please call
The December 2017–January 2018 North American cold wave was an extreme weather event in North America in which record low temperatures gripped much of the Central, Eastern United States, and parts of Central and Eastern Canada. Starting in late December as a result of the southward shift of the polar vortex, extremely cold conditions froze ...
The polar vortex, which is a storm at the jet stream level of the atmosphere, has kept frigid air pent up above the Arctic Circle for much of the winter. When the polar vortex remains strong as it ...