Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.
A rare stratospheric event is forecast to unleash bone-chilling air from a weakening vortex across the US and New England, ...
Morning Overview on MSN
Polar vortex collapse could reshape climate patterns
The polar vortex, a high-altitude ring of westerly winds that usually keeps Arctic air locked near the pole, is showing signs ...
Although a major winter outbreak is not guaranteed, forecasters are watching for below-average temperatures to develop in the ...
Winter isn't over just yet. A major shift in the weather pattern could have millions across the United States once again reaching for their winter coats later this month before milder springlike air ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results