At a Glance

Areas of snow, sleet and freezing rain are possible from the South to the Midwest and East.Colder weather will spread into parts of the U.S. early this week.The cold will be most persistent from the northern Rockies into parts of the Plains and upper Midwest.

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A​n arctic cold snap plunged into the middle of the country over the weekend, setting the stage for a potential wintry mess of snow and ice from parts of the South into the East this week.

F​or some, this will be a dramatic change as it reaches portions of the South from what otherwise has been .

S​nowy, Icy Mess?

A stationary front marking the boundary of the arctic air mass will hang out from the Southern Plains to the East Coast. With an active jet stream riding over the top of it and moist air pulled north from the Gulf over the cold air, this is a prime setup for multiple rounds of snow, sleet and freezing rain on the cold side of that front.

While the key forecast details have not yet come into focus this far in advance, areas from western and northern Texas and Oklahoma eastward into Arkansas, Kentucky, Tennessee and possibly parts of the mid-Atlantic have the best chance of seeing at least one round of snow and/or ice in the week ahead.

S​ome freezing rain and/or sleet may begin as soon as Monday morning in this zone.

The most likely area for problems includes far north Texas, southeastern Oklahoma and northern Arkansas. T​here is at least a low chance of disruptions to daily life, including travel issues, closures and sporadic power interruptions in this area.

(​FORECAST: 7-Day U.S. Rain, Snow, Ice Maps)

Tuesday's Forecast

(While it is too soon to pinpoint precisely who will see what precipitation type, the green shadings depict where rain is expected. Areas that are shaded blue are expected to see snow. Purple-shaded locations may see either rain or snow. Areas in pink are expected to see sleet or freezing rain (ice).)

If you live in, or have travel plans to these areas, keep this potential in mind and check back frequently for updates to this forecast in the days ahead.

C​old Snap Timing

R​ockies, Plains

S​ubzero lows are possible as far south as northern Illinois, Iowa, western Kansas and eastern Colorado. Teens and 20s below zero are possible in the coldest spots of the northern Rockies and Northern Plains. At times, strong winds could lead to dangerous wind chills in these areas.

I​n Oklahoma, northern and western Texas, subfreezing lows can be expected in the week ahead, and a few days may see high temperatures remain below freezing.

H​owever, this cold snap is not forecast to be nearly as cold, nor last as long as either the , or the .

(​MORE MAPS: 10-Day U.S. Forecast Highs/Lows)

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