Officials said there is a risk of further flash flooding in Colorado as residents attempt to recover from the worst floods to hit the state for almost 40 years.
More downpours are forecast on Sunday following five days of unprecedented rainfall that has destroyed homes and washed out bridges and roads.
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Andrew Nay smashed into a family's car with his 4x4 during a road rage chase leaving two young sisters paralysed, a court heard.
Susan Whiting was attacked with a blunt object at the couple's bungalow, wrapped in a shower curtain, and hidden under a bed.
Teenager TJ Khayatan carried out the prank at the San Francisco Museum of Modern Art - and later posted the results on Twitter.