Article Photos: Deep freeze to continue into weekend in East

Ice crystals form frost on the window of a home in Medina, Minn., as the area experiences subzero temperatures on Monday, Jan. 21, 2013. (AP Photo/The Star Tribune, Richard Sennott)

Ice crystals form frost on the window of a home in Medina, Minn., as the area experiences subzero temperatures on Monday, Jan. 21, 2013. (AP Photo/The Star Tribune, Richard Sennott)