Three factors are combining to increase the likelihood of a weaker polar vortex this winter, the website reports. And a ...

The polar vortex is essentially a large area of low pressure and cold air surrounding both of Earth’s poles. It constantly sits over the poles but expands in the winter.

Polar vortex headed for US will bring ‘exceptionally cold’ temps in the new year: ‘Weather models are screaming’ By . Alex Oliveira. Published Dec. 30, 2024, 8:14 p.m. ET.