The polar vortex is a broad, fast ribbon of cold air that encapsulates the Arctic high in the stratosphere. Stable, it ...

The polar vortex is a large area of low pressure and cold air surrounding the Earth’s poles. Under normal conditions, it spins tightly around the Arctic. However, as the Arctic warms, this system ...

Its strength and position shift with the seasons, according to the National Weather Service. When the vortex is strong, the ...

La Niña will be emerging and will likely persist into winter, favoring a weather pattern with above-normal temperatures and ...

The polar vortex is Earth's frozen guardian—but that guardian is starting to fail. This video dives into the science behind the vortex’s destabilization and the global consequences we could face, from ...

The polar vortex is beginning its seasonal strengthening, signaling a gradual shift toward cooler weather. Frost advisories were issued in parts of the Great Lakes region, New York, and New England as ...