A fast-moving winter storm packing a dangerous combination of snow, sleet and ice is moving through the Midwest on Saturday afternoon, with up to a foot of snow predicted in parts of the Northeast by Sunday morning.

ARLINGTON, Va. − A wall of snow, ice and rain was sweeping across the Northeast on Thursday, the first in a series of storms forecast to wallop much of the nation's northern tier over the next several days.

Storm Freya, three more storms are in the forecast through late next week, some of which will hit similar parts of the Northeast, Midwest and Plains. Here's what you need to know.