• July 16, 1993: Thunderstorms, dumping two to seven inches of rain caused flooding problems in northeastern South Dakota. Several dams and many roads were washed out. Most of the damage was in Marshall County. Six families were evacuated about six miles southeast of Britton as two private earthen dams broke. Winds, as high as 70 mph were also reported in a couple of locations in Marshall County. The heavy rains resulted in flooded farmland, roads, and basements in northeast South Dakota through July 21st. In Groton and Claremont at least 90 percent of the homes had water in the basements. Some storm total rain fall amounts include: 3.20 inches in Leola; 3.14 in Ipswich; 3.13 in Britton; and 2.77 in Eureka.
• July 16, 2001: Very heavy rains of 3 to 7 inches fell across north central Corson County causing flash flooding. Oak Creek along with several other streams washed out several roads and damaged some fences from Watauga to McIntosh to McLaughlin and north. Travel was stopped for awhile on the Highway north of McLaughlin.
• 1914: The U.S.'s 30 minute rainfall record was set at Cambridge, OH with exactly seven inches.
• 1969: A "wrong way" tornado touched down in Iowa near Churdan and moved slowly west. Three farms were damaged.
• 1979: Wyoming's costliest tornado on record struck the north side of Cheyenne as an F4. The airport was heavily damaged along with over 450 nearby buildings to the tune of $22 million in damage. The only fatality occurred in a trailer, where a baby was killed.
• 1999: A plane piloted by John F. Kennedy, Jr. crashed into Long Island Sound as haze or a dark night sky caused him to lose control of the aircraft.
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