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 ...

But starting Tuesday, we will experience the coldest days yet this season. A potent surge of Arctic air starts settling in Monday evening as a massive dip in the jet stream pulls in frigid air ...

THERE COULD BE A LITTLE BIT MORE SNOW ON THE WAY FOR THE WEEKEND. I WANT TO FOCUS ON THE CERTAINTIES AND THAT THAT IS ARCTIC AIR. THREE WAVES OF ARCTIC AIR. WE’RE EXPERIENCING THE FIRST ONE ...