Remember when winters in the Northeast were really cold? They'e backkkk.... Via CNN:

The coldest air of the season – by far – will dive down from Canada, bringing dangerously cold temperatures to millions this week. Temperatures will drop so low in some places that frostbite could begin in as little as five minutes on exposed skin.

Temperatures are already cold to start the week across much of the northern tier of the country.

“Highs over central and eastern Montana will struggle to get above zero today, while daytime lows ranging from 0 to -15 degrees will be common from eastern Washington to the Upper Mississippi Valley,” the Weather Prediction Center wrote.

But this is only the beginning of a brutal week that will get much, much colder – as temperatures dive 30 to 50 degrees below normal.

You can track the winter storm here.

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