Major winter storm affects a good chunk of the country through the weekend with rain, snow, and ice. It begins in the Four Corners region today and heads north and east the next few days making it into MN by Sunday morning. All precipitation modes and heavier precipitation potential could still shift a bit depending on the exact track of this system. Currently, the expectation is for ice accumulations to occur tonight in the southern High Plains and then building northeast into the central Plains during the overnight, and on Saturday in parts of eastern SD, MN, and northern WI. The heavy snow potential develops east and north of the ice regions especially into Saturday for the eastern Dakotas and northwest MN with some of these areas picking up a foot or more by Monday morning. High rain totals are also expected across the lower Mississippi, Ohio, and Tennessee river valleys along and ahead of a cold front moving through those regions.

Elsewhere light precipitation is expected in New England today as a system continues to move through eastern Canada, and another system builds into the Northwest into the weekend and moves south down the coast producing rain and snow for WA, OR, and CA.