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This Day in Weather History Archive
July 28, 1986:
Very intense thunderstorms developed in South Dakota and Nebraska and moved into Iowa. The first of these storms produced a tornado that crossed into Iowa south of Sioux City and slammed into a coal-burning power plant. This tornado caused between 25 and 50 million dollars damage to the plant. The tornado continued across farmland, then damaged a store and flattened a motel in Sloan before lifting up.
| Record Highs: | Record Lows: |
| Aberdeen: 109 (1975) | Aberdeen: 44 (1981) |
| Kennebec: 117 (1933) | Kennebec: 42 (1971) |
| Mobridge: 111 (2006) | Mobridge: 43 (1915) |
| Pierre: 111 (2006) | Pierre: 46 (1971) |
| Sisseton: 105 (1975) | Sisseton: 44 (1904) |
| Timber Lake: 108 (2006) | Timber Lake: 40 (1971) |
| Watertown: 105 (1933) | Watertown: 41 (1928) |
| Wheaton: 108 (1917) | Wheaton: 45 (1925) |
| Record Precipitation: | |
| Aberdeen: 1.35" (1955) | |
| Kennebec: 0.83" (2004) | |
| Mobridge: 0.58" (2002) | |
| Pierre: 0.80" (1986) | |
| Sisseton: 1.60" (1942) | |
| Timber Lake: 1.20" (1983) | |
| Watertown: 2.45" (1953) | |
| Wheaton: 1.28" (1918) |