Daily Historical Weather for September 21
Heavy rain in southwest Oklahoma on September 21 and 22, 1969, caused extensive flooding and damage to pasture and crop land. About 1,500 cattle were trapped by the high water, and many of them drowned. More than 10 bridges were washed out, and fences were removed by the floodwaters. Official rainfall measurements exceeded six inches in some locations, and an unofficial report of 11 inches in 11 hours was received from Hollister. The flooding was thought to be the worst in the area since 1951.