Millions are under weather warnings as mix of snow, thunderstorms, and high winds hit parts of the eastern US, while the west coast faces extreme heat. Tornadoes, thunderstorms and blizzard conditions are forecast to pummel parts of the eastern US. More than 34 million people were under tornado watches from Florida to New Jersey. Nearly 3ft (0.9m) of snow has fallen in Minnesota, Wisconsin and north... [3478 chars]