Chemical reactions in the Arctic atmosphere are accelerating warming and reshaping climate far beyond the polar region.

We are looking towards next week at the possibility of Arctic air moving southward and the possibility of freezing temperatures in the Coastal Bend. One of the potential factors that could play a key ...

The air moving into Michigan early next week will originate in Siberia. Here’s a look at the plunge to frigid temperatures. When we get our normal cold here in Michigan the air moves from southwest ...

A potential wobble in the polar vortex could bring a return of arctic air to Ohio and the northern U.S. around Thanksgiving. Forecasts show below-average temperatures for about half the country ...

A potential wobble in the polar vortex could bring frigid Arctic air to the northern U.S. around Thanksgiving. Forecasts show below-average temperatures for about half the country, while the Southeast ...