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Polar vortex - Wikipedia
Each polar vortex is a persistent, large-scale, low pressure zone that rotates counter-clockwise at the North Pole (called a cyclone), and clockwise at the South Pole, i.e. both polar vortices rotate eastward around the poles.
Polar vortex coming in November: Arctic blast to central ...
A chunk of the polar vortex is forecast to slide over the central and eastern United States over the next few days, marking its first unwelcome visit of the season. In many locations, temperatures ...
What is a Polar Vortex? - AccuWeather
A polar vortex is a large pocket of very cold air, typically the coldest air in the Northern Hemisphere, which sits over the polar region during the winter season.
Cold Weather Safety
Cold weather can also affects crops. In late spring or early fall, cold air outbreaks can damage or kill produce for farmers, as well as residential plants and flowers. A freeze occurs when the temperature drops below 32°F.
Polar vortex returns: Here’s where it’ll be coldest - CBS News
Arctic air from the polar vortex has already brought bitterly cold temperatures to the Northern Plains and Upper Midwest this week, Jamie Yuccas reported for “CBS This Morning” Tuesday.
What is the Polar Vortex? - National Weather Service
The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. It ALWAYS exists near the poles, but weakens in summer and strengthens in winter. The term "vortex" refers to the counter-clockwise flow of air that helps keep the colder air near the Poles.
Splitting Of The Polar Vortex: The Arctic Is Melting In ...
The polar vortex is an upper-level low-pressure field of air which rotates around the North (and South) Pole. The polar vortex acts as a barrier to isolate arctic air from warmer air to the south.
What Is a Polar Vortex? Here's Everything You Need to Know
Sometimes the polar vortex wobbles and a lobe surges south, blanketing portions of North America with bitter temperatures. The chilly mass circulates around the North (and South) Pole all year long.