The cruise ship Oriental Star capsized on the Yangtze River of China on 1 June 2015 leaving 442 fatalities. Based on radar analyses and ground and aerial damage surveys, scientists revealed that the ship encountered strong winds at the speed of at least 31 m s-1 near the apex of a bow echo embedded in a squall line. Such strong winds were likely caused by microburst straight-line wind and/or embedded small vortices, rather than tornadoes.
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