The polar vortex strengthens every winter in the stratosphere, a layer of the atmosphere that stretches from about 10 to 30 ...

An unusually early weakening of the polar vortex this November could allow Arctic air to reach parts of the United States, ...

A complete reversal of the polar vortex winds has occurred, a historical first for November. Learn about the unprecedented ...

Snowstorm speculation and social media hype have been amplified during the past week because the polar vortex was disrupted ...

The jet stream steers winter storms. See how its path shapes snow odds in the West versus the East and how to use it to plan ...

Will the Pacific jet stream or the polar vortex dominate November's weather? A 'blowtorch pattern' sets up, but for how long?

The polar vortex is a large region of low pressure and cold air that surrounds both of Earth’s poles. It is always present ...

A November disruption high above the Arctic could change the atmospheric circulation in the weeks ahead, with possible implications for India's winter.

Each hemisphere hosts two primary jet streams: The polar jet stream is typically found near 50 to 60 degrees latitude, across Canada in the Northern Hemisphere, where cold polar air meets warmer ...

The Jet Stream map shows today's high wind speed levels and jetstream directions. Jet streams are fast flowing, relatively narrow air currents found in the atmosphere around 10 kilometers above the ...