Are polar vortices new phenomena?

Jan 30, 2014 ... Rutgers climate scientist believes that Arctic warming is altering jet stream around Northern Hemisphere vortex. Polar vortex could prime atmosphere for spring snowstorms. With plenty of cold air in place, the colder pattern during the second half of March could set the ... The polar vortex is an area of low pressure and circulating cold air that exists year-round over Earth's poles. Dec 9, 2014 ... We investigate the impact of volcanic aerosol forcing on stratospheric dynamics, including the strength of the NH polar vortex, in ensemble simulations. Feb 23, 2025 ... A polar vortex as strong westerly winds that form each winter in the atmosphere above the North Pole. Jan 3, 2025 ... It's a small cold spell with heavy snow and ice in areas that usually don't get that bad of a winter storm. Oct 19, 2023 ... Polar vortex is the name given to the strong currents of wind formed by low pressure that occurs in the Arctic and Antarctic regions. The name ... There are separate stratospheric and tropospheric planetary-scale circumpolar vortices, with differing structure, seasonality, dynamics, and impacts on extreme ... Mar 6, 2025 ... The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, ... Jan 1, 2025 ... While not as severe as the 2021 Great Texas Freeze, the upcoming polar vortex will quickly drop temperatures into the 20s and 30s across Texas ...