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On This Day In Weather History - July 21


2010   North Central Missouri areas experienced up to 8 to 10 inches of rain over the 19th and 20th. Severe thunderstorms also produced an EF0 tornado 9 miles east of Princeton.


1983   Vostok, Antarctica recorded the coldest temperature ever on the planet: 129 degrees below zero.

1987   An F4 tornado swept through Yellowstone National Park leaving a path of destruction up and down a 10,000 ft mountain, the highest elevation an F4 has been recorded. 15,000 acres of trees were downed.