Tuesday, Jan. 22
With the jet stream blasting straight south out of northern Canada, cold air will continue to flood the eastern two-thirds of the country into Tuesday.
Major Great Lakes cities such as Chicago and Detroit will probably not get out of the teens Tuesday, and lake-effect snows are likely to continue in favored lake-effect snow belts southeast of all five major lakes.
All cities along the I-95 corridor from Boston to D.C. will see highs in the 20s. Single digits and teens for highs are likely from northern New England to western New York and western Pennsylvania. These cold temperatures will stay in place across the Northeast into Wednesday.
We'll also keep an eye on an area of low pressure developing off the Northeast coast late Monday into Tuesday, which could bring a quick round of snow to parts of southern New England such as Providence.
The southern edge of the cold snap will start to retreat a bit on Wednesday, but from the Upper Midwest to the Northeast it will remain mighty nippy.