Prolonged Frigid Temps 

Areas east of the Rockies in deep freeze

Cold temperatures have already invaded areas from the Upper Midwest all the way to the Northeast and into the Deep South as well. Wind chills Thursday morning were in the teens, 20s and 30s below zero in much of the Midwest.

According to a Weather Channel report, many locations in the Upper Midwest, Great Lakes, and Northeast will see single digits and teens for highs today (Thursday). A few spots in the upper Mississippi River Valley may see subzero high temperatures.

Subfreezing highs will reach as far south as Lubbock, Texas, and Memphis, Tennessee.

Friday morning, expect bitter cold temperatures in the upper Mississippi Valley, Great Lakes, Upstate New York, and Northern New England, with lows in the single digits and teens below zero. Windchills will be in the 20s and 30s below zero around the Great Lakes late tonight into early Friday.

Temperatures will once again be in the single digits along the I-95 corridor of the Northeast Friday morning, including Philadelphia, New York City and Boston. Wind chills will likely be in the single digits below zero.

Warmer-than-average temperatures will briefly push into the Upper Midwest and Northern Plains Friday afternoon, while the Northeast and South stay well below average.

This weekend into next week, additional surges of Arctic air will arrive. Two surges of Arctic air will pour southward from Canada behind a couple of Alberta clippers that will bring snow to the northern tier this weekend.

Once again, the Midwest, Northeast and the South will experience frigid temperatures. By Monday and Tuesday, many cities in these regions will see temperatures 15 to 30 degrees below average, right during the climatologically coldest time of year.

Subzero high temperatures are expected in the Upper Midwest and western Great Lakes. Low temperatures will dive below zero as far south as the Ohio River by Tuesday morning.

Some cities, including Minneapolis and Chicago, will see temperatures dip to the levels they saw in early January on Tuesday morning.