Environment Canada has issued weather warnings for most of Canada over a 'high or moderate impact level' cold blast that is ...

A polar vortex brings bitterly cold Arctic air into southern Ontario. Here’s what it is and what you can expect.

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the Prairies and across Eastern Canada.

What is the polar vortex? It’s a wintertime mainstay capable of flooding Canada with some of the world’s coldest air ...