The arctic weather pattern explained. WBZ-TV meteorologist Jacob Wycoff explains what the polar vortex is, and how it impacts our weather.Jan 7, 2025 Twitter Facebook Email Live Now CBS News 24/7 CBS News Baltimore CBS News Bay Area
阅读理解关键词:polar vortex语篇类型:说明文词数:310难度:★★★建议用时:8分钟正确率/4Record cold weather in the United States is forcing schools8. What made people feel colder than itand businesses to close. The "polar vortex(极地涡旋)", as it isreally was in Chicago, Illinois?called, has...
east around Earth at speeds of 120 to 250 miles per hour,but can become dramatically wavier when it's disturbed by strong storm activity or encounters masses of hot or cold air.But this winter season, the meandering jet stream has not knocked the polar vortex off its pole,explained Lang. ...
When the northern polar vortex is strong, Cohen explained, it keeps most of the air cooled by the Arctic in the polar region, resulting in mild winter temperatures in the middle latitudes of the eastern United States, and in northern Europe and Asia. But when the polar vortex weakens, the...
Thepolar vortex-- a deep mass of frigid air that rotates around the top of the world -- has been knocked off balance, which means it's liable to spill cold air into the U.S. Although winter temperatures in the lower 48 stateshave generally been normalor w...
The polar vortex isn’t a storm, nor is it dangerous on its own. The only hazard associated with the polar vortex is the dangerously cold air that can spill out of the Arctic toward lower latitudes, which can last for long s...
Is the polar vortex connected to climate change? A counterintuitive theory about the polar vortex is gaining ground among some in the climate science community: Regional cold air outbreaks may be getting an "assist" from global warming. While it may not seem to ...
We investigate persistent low‐frequency variability of the stratospheric winter polar vortex in a rotating spherical shallow‐water model under the action of topographic wave forcing and radiative cooling to a simple time‐varying equilibrium state representative of the seasonal cycle in solar heating. ...
Thepolar vortexis expected to remain on the Canadian side of the North Pole, which will keep an abundant supply of Arctic air readily available to fight back at times against the milder pattern. The region from the Great Lakes to Atlantic Canada will be the ...
shrinks. Chen pointed out that this weakens the western wind in middle latitude regions thus weakening its ability to prevent cold waves from going south, which, combined with the increasingly frequent unstable polar vortex that unleashes more cold waves, the frequency of cold weather naturally gets...