A "very dangerous" weather system, which could spawn tornadoes, thunderstorms and damaging winds, would put 53 million people in the US at significant risk, Reuters reports citing the US National Weather Service said.
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It will be a mainly dry but chilly start across the UK with a few showers across northern Scotland and northwest England.
Marks and Spencer will become the first UK retailer to add vitamin D to its entire packaged bread range.
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