A man who survived yesterday's spate of tornadoes has told of how he and his family ran into their basement with just seconds to spare.
He described to NBC's Today show the scenes of destruction he discovered when they emerged from their basement:
More top news
Mild but expect temperatures to fall in the next 24 hours to become bitterly cold in the wind.
More than 100 Auschwitz survivors from at least 17 countries were expected to attend the main ceremony at the concentration camp.