A detailed analysis of polar vortex collapse mechanisms and how they relate to occasional North American cold outbreaks.

What we call the polar vortex -- a spin in the atmosphere -- can't actually be felt in the U.S. or anywhere on Earth. It doesnâ t ice over too often ...

Two newly identified patterns in the stratospheric polar vortex can send cold air over North America to cause extreme cold snaps, but the parts of the country that suffer differ between them. Those ...

Polar Vortex forecast from March 6 to March 20, 2025. (source: Judah Cohen, AER) Judah Cohen The stratosphere actually warms an incredible amount in a short time during these SSW’s.

A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of Europe into a bitterly cold spell just ...

However, a disruption in the vortex – known as "sudden stratospheric warming" – back in mid-March will finally be making its way down to the surface in the eastern U.S. next week, Cohen said.

Usually, the polar vortex circulates around the North Pole like a spinning top. Occasionally, it collapses dramatically, which usually leads to polar air rushing toward northern Europe and Asia.

Weather Predictions of a weaker polar vortex this winter could mean more extreme weather Published: Jul. 10, 2025, 12:32 p.m.

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media advisory sent to Rigzone recently. “AccuWeather long-range experts ...

The polar vortex has been known about and studied by the meteorological community for decades. It is an almost always present upper-level circulation that hangs out most of the of time around both ...

Why has April in Chicago been cold so far? A big factor is the disruptions in the polar vortex, even as the “polar vortex season” is winding down, according to NBC 5 Meteorologist Kevin Jeanes ...

A polar vortex collapse occurs when air in the stratosphere heats up significantly, displacing the vortex from its normal position at the poles and possibly moving it over the U.S.