Alaska's capital of Juneau faced record floodwaters due to rainwater and snowmelt flowing downstream from a basin dammed by the Mendenhall Glacier.

One of Alaska's most populated cities is bracing for potentially catastrophic flooding as a basin dammed within the Mendenhall Glacier has started to release water.

Record floodwaters released by the nearby Mendenhall Glacier crested Wednesday in a river that flows through Alaska’s capital city with no immediate reports of major damage, though officials warned that high water would remain for several hours.