After Feb dumped a wave of unconditionally severe winter weather in the US, March is about to unleash those conditions again due to the polar vortex collapse.

NOAA Climate.gov image, adapted from original by Laura Ciasto. This winter, the polar vortex winds have stayed consistently stronger than average, corresponding to anomalously low atmospheric ...

The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

While cold temperatures and snow are not at all unexpected in many parts of the world, they are quite rare in others. In ...

The National Oceanic and Atmospheric Administration (NOAA) explains that a polar vortex a large area of low pressure and cold air surrounding both of the Earth's poles. The vortex describes the ...

Weather officials have issued freeze warnings in three southern states as temperatures are expected to plummet below freezing ...

Strong westerly winds banded together in the stratosphere of the North Pole are what make up the Arctic polar vortex, according to the National Oceanic and Atmospheric Administration (NOAA). The winds ...

Less than a week after snow, sleet and freezing rain, we're now forecasting highs in the 70s. During its coldest point, last week saw wind chills drop to -30° to -50° in states like Iowa ...

The polar vortex has been “considerably stronger” than usual this year, according to Laura Ciasto, a meteorologist with NOAA’s Climate Prediction Center, which should keep record-breaking ...

That scientist, Eddie Sheerr, believes that cutbacks south of the border could have impacts in hurricane-prone Atlantic ...

A disturbance in the Atlantic Ocean east of Florida has a small chance of developing into a cyclone, according to the National Hurricane Center.

Despite the problems the cold can cause for farmers, gardeners, and homeowners, a cold winter can be a welcome event from a pest management perspective.