Northern US Dives Back Into The Ice Box

If you thought it was cold already, grab another blanket. Another blast of arctic cold air is sweeping across much of the country, leaving millions shivering.

(MORE: Your Thanksgiving Weekend Travel Forecast)

Timing Of The Cold

• Monday: The colder air should finally reach most of the East, with the exception of Florida, and remain quite strong over the upper Midwest and Plains.

Cold Highlights

The second cold blast will likely be the coldest of the season, so far, in the Northern Plains and upper Midwest.

The bulk of the worst cold has already arrived across the Northern Tier and it will continue to slide south and east this weekend.

(MAPS: 10-Day US Forecast Highs/Lows)

Lows Monday morning could drop below zero degrees from eastern Montana to the Dakotas, parts of Iowa, Minnesota and Wisconsin.

And wind chills in the Northern Plains may plunge into the teens, perhaps 20s below zero into Monday.

How Long Could It Last?

If you're already sick of the cold, is there any relief after this second arctic blast?

For some, yes.

While NOAA's 8-14 day outlook below indicates more persistent colder-than-average conditions in the Midwest and Northeast, there is some relief later in the first week of December in parts of the South and West.

(MORE: How The Polar Vortex May Affect Winter)

Miriam Guthrie graduated from the Georgia Institute of Technology with an undergraduate degree in Atmospheric and Oceanic Sciences and is now a meteorology intern with weather.com while working toward her master’s.