A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.
Read more about these maps. Please be aware that wind gusts can be 40 percent stronger than the average wind speeds presented here, and stronger still in thunderstorms and squalls.
Read more about these maps. Please be aware that wind gusts can be 40 percent stronger than the average wind speeds presented here, and stronger still in thunderstorms and squalls.