After intense winter cooling 2012-2015, Labrador Sea convection continued to intensify to 2018, and subsequently weakened and shoaled due to polar vortex collapse and Arctic sea ice loss, as analyses of Argo-float and ship-based measurements show. ...
MUST SEE: Winter to finally show up in January as El Niño bested by polar vortex A polar vortex is ushering in Arctic air, bringing the coldest temperatures in 70 years for some areas! Residents should brace themselves for dangerously cold overnights, with ...
THE EAST'S TURN TO TAKE THE BRUNT OF THE ARCTIC CHILL When we take a look at Central and Eastern Canada, there has truly been a lack of winter weather and Arctic air across this part of the country -- as predicted with this pattern in place. However, the lobe of ext...
Recent extreme Arctic temperatures are due to a split polar vortex. J. Clim. 29, 5609–5616 (2016). Article ADS Google Scholar Petropoulos, F. et al. Forecasting: theory and practice. Int. J. Forecast. 38, 705–871 (2022). Article Google Scholar Lenton, T. M. et al. Climate ...
Something some seasonal forecasters keep an eye on during the autumn is the runup of snow cover in Siberia. It's thought that a fast onset helps load a pattern that can weaken the polar vortex, allowing more cold to spill into the U.S. and Europe (with the opposite being true as wel...
“polar vortex,” a mass of frigid air that is usually over the Arctic, was to blame. It gets the name vortex because it turns counterclockwise, like a hurricane. When this low-pressure air system is weakened, which can happen when temperatures are warm, the polar vortex can push ...
(2018) to investigate the recent evolution of the stratospheric polar vortex. We build on this growing body of research into disruptive and abrupt shifts in weather regimes. We focus on a domain spanning North America and the eastern North Pacific Ocean to capture continental-scale weather ...
Polar Vortex It is a large area of low pressure (cyclone) that surrounds the Earth's pole. This cold, swirling air is always present, although it shrinks in size and impacts in the warm season. Occasionally, the main polar vortex will throw smaller scale pieces of cold air toward lower ...
1974: Time Magazine: Polar vortex another indicator of global cooling say scientists 1974: Expanding Ice Cap And Himalayan Glaciers Threaten World’s Food Supply, Leading Scientists Say 1974: CIA Determines Moscow Drought And Midwest Floods Result of Global Cooling 1974: Scientific support for theory...
Weather regimes across North America have been connected with various modes of variability that act on S2S timescales, such as the stratospheric polar vortex (SPV) and tropical modes of variability such as the Madden-Julian Oscillation (MJO)14,26. Furthermore, recent work has highlighted the ...