Snow and freezing rain could fall from Seattle to Washington, DC , and from North Dakota to Louisiana Temps as low as minus 45 gripped Montana and Minnesota while minus 26 was reported in North Dakota Louisiana, Virginia, and Oklahoma have declared states of emergency in anticipation of icy road conditions The Plains states will see significant snowfalls of 6 or more inches and freezing rain from Sunday into Monday Houston, which this week had highs in the 70s, was forecast to have its coldest temperatures in 30 years Ice storm warnings were issued for Pacific Northwest states including Oregon and Washington State Tens of thousands were without power in West Virginia after ice storm hit the area earlier this week