As we continue to warm moving into February, it appears latest trends suggest a classic "what goes up, must come down" type ...

The upcoming midweek storm is one of several systems that promises to bring precipitation and eventually the month's coldest ...

In this video, we explore the chilling effects of the polar vortex and what it could mean for Earth in the next decade. Just like the Night King in Game of Thrones, a powerful icy force is lurking to ...

A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Each year, cities, states and individuals spread millions of tons of road salt, which can leach into nearby freshwater ...

The polar vortex, a natural atmospheric phenomenon, influences global winter weather by circulating Arctic air. Its expansion brings frigid air south, causing unusual cold spells. Increasing ...

While Thursday temperatures will finally get above freezing, 7News Senior Meteorologist Brian van de Graaff said “it will still be colder than average.” He noted the average for this time of ...

As the polar vortex delivered what is expected to be its final blast across southern Ontario on Wednesday, city residents braved the bitter cold — including Fintan the lion at the Toronto Zoo.

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, ...

The weather forecast predicts a harsh polar vortex sweeping into Niagara-on-the-Lake until Wednesday, with temperatures that could dip to -15 C and expected to go lower near the lake.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not ...

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 ...