The weather pattern over the next couple of weeks will favor waves of cold air and Canadian storms, known as Alberta Clippers, from the northern Plains to the Northeast.
Each blast of cold air will vary in magnitude, duration and coverage area.
Between the waves of cold air, the storms will ride from the Canada province of Alberta or thereabouts and race southeastward across the Great Lakes then either off the coast of Atlantic Canada or the Northeastern states...
As the Alberta Clipper storms approach and pass to the north of a location, temperatures can rebound for a day or more, prior to another push of arctic air. This is likely to occur this Saturday (Jan. 18) and again later next week (Jan. 24-26)...
Even so, several days in a row with temperatures consistently below freezing are possible along the I-95 corridor from Philadelphia through Boston during the first part of next week, with additional episodes of the same possible later in the month.
Chicago is likely to have several days in a row with highs in the teens.
The pattern is favorable for heavy lake-effect snow in many of the snow belts downwind of the Great Lakes. The snow is likely to be measured in feet in some areas.
Chicago, Buffalo, Detroit and Cleveland are likely to have most days remaining below freezing into the first week or two of February.
During the arctic outbreak coming late this weekend into early next week, Minneapolis is likely to have its first day in four years in which the temperature remains below zero the entire day.
International Falls, Minn., is forecast to have a high of 15 degrees below zero next Monday. The last time the high was 15 degrees below zero or lower there was Feb. 2, 1996.