Bitter cold air lodged in western Canada is expected to move into the Upper Midwest and Northeast over the weekend. By Saturday night temperatures could reach 10 to 20 below zero across the Dakotas and Minnesota with wind chills at 30 to 40 below. The bitter cold will slice eastward into the Great Lakes on Sunday and into the Northeast by Sunday night. Blowing snow and blizzard conditions will reduce visibilities to near zero in some areas. The cold is expected to ease by early next week. The Southeast will only receive a glancing blow from the cold. Inland sections of Eastern North Carolina should still fall below freezing by early Monday morning.