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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 ...
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 forecasts reflected the likelihood of a weak La Niña pattern and weak polar vortex during much of the season. Overall for the winter, significantly above-average temperatures were forecast for most of the Southern Tier, with near-average temperatures in the Central and much of the Northeastern United States. Slightly below-average ...
AccuWeather forecasters break down the science behind the polar vortex and how it can influence the weather for locations thousands of miles away. While the name for this phenomenon may sound ...
The outbreak in mid- to late December heavily focused on areas west of the Appalachians in the Central states. For the Northeast, as well as a large swath of eastern Canada, this will be an Arctic ...
2014–15. The 2013–14 North American winter was one of the most significant for the United States, due in part to the breakdown of the polar vortex in November 2013, which allowed very cold air to travel down into the United States, leading to an extended period of very cold temperatures. The pattern continued mostly uninterrupted throughout ...
A shift in the polar vortex could open up the gates of the Arctic to unleash frigid air across the central and midwestern U.S. late in the winter, resulting in some of the coldest conditions of ...
The 2020–21 North American winter was the most significant winter season to affect North America in several years, and the costliest on record, with a damage total of at least $33.35 billion (2021 USD). The season featured six storms ranking on the Regional Snowfall Index scale (RSI), with four storms ranking as at least a Category 3.