Record-breaking cold to hit the eastern United States

The eastern United States will likely break several weather records this week as Siberian air that made its way across the North Pole sweeps into North America. Temperatures could go below zero in Washington, D.C. for the first time since 1994 and all-time February lows could be set from Tennessee to Virginia, The Washington Post reports. On Thursday, Kentucky will likely experience temperatures 40 degrees below normal, and on Friday, the GFS model is forecasting morning lows below minus 20 degr...