Toasty isn't exactly how you will describe the bone-numbing coming days. "Multiple waves of arctic air continue to gather over northern Canada with eyes for the central and eastern United States ...

When and where to expect arctic blasts The first surge of Arctic air is slated to arrive early this week, followed by a second wave over the weekend. By next week, a third blast will hit the ...

ARCTIC AIR IS GOING TO SURGE BACK AND FORTH ACROSS THE LOWER 48. YOU KNOW, SOME OF THIS AIR IS ALL THE WAY FROM THE NORTH POLE AND BEYOND. WE GOT THAT. WHAT’S CALLED CROSS POLAR FLOW.

A powerful pattern is setting the stage for an amplified jet stream that will shunt cold air south, and the roots of this shift lie thousands of kilometres away in Japan. This January, the Arctic ...

Now when this happens, those areas in the middle latitudes, including the U.S., generally experience a west-to-east air flow and cool ... air floods north into the Arctic and cooler air fills ...