A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

The weather flow is gradually changing now and as we head into early February. Our storm systems will come from the west and ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

A storm will bring heavy snow, particularly to southern Nebraska and southwest Iowa, with sharp variations in snowfall totals ...

However, there are times in which the polar vortex is disrupted by influxes of warm air. When strong atmospheric waves in the troposphere, the layer in which we live, breach the stratosphere ...

The vortex is located in the stratosphere, the layer above the troposphere (the troposphere is where we live and most weather occurs). In the winter, the polar vortex helps keep frigid ...

The latest monthly temperature outlook by the National Weather Service's Climate Prediction Center looks familiar to those ...

Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and severe weather conditions. It comes as the U.S. is potentially set to see ...

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...