This Day in National/World Weather History ...
 21 August 1883 → What was likely an F5 tornado devastated the north side of Rochester, MN. The tornado derailed a train and leveled farms. 40 people were killed.
 21 August 1888 → A "grand spectacle" of four waterspouts near Jacobson, MD overturned boats and moved ashore. 15 people were injured. Another tornado moved east-northeast near Still Pond, MD killing 10 people in a cannery. A total of 11 deaths and 40 injuries were reported from this tornado.
 21 August 1918 → Tyler, MN suffered a direct hit by an F4 tornado. Six hundred buildings were damaged or destroyed and 36 lives were taken, including three when the town's hospital was struck.
 21 August 1984 → The State Fair in Pueblo, CO had to be closed during a vicious hailstorm. Nine people were hurt, including one seriously.

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August 16, 1986:

Thunderstorm winds gusted to 60 mph in Forestburg, in Sanborn County. Thunderstorm winds gusting to 100 mph uprooted trees and damaged buildings in the northern part of Hanson County. On several farms, barns, garages, silos, and small buildings were destroyed. The worst affected area was south of Epiphany where large steel sheds were damaged and a roof was blown in.


Record Highs: Record Lows:
Aberdeen: 105 (1988) Aberdeen: 42 (1897)
Kennebec: 108 (1937) Kennebec: 41 (1897)
Mobridge: 101 (2003) Mobridge: 46 (1943)
Pierre: 106 (1988) Pierre: 48 (1977)
Sisseton: 101 (1988) Sisseton: 45 (1981)
Timber Lake: 103 (1988) Timber Lake: 43 (2012)
Watertown: 101 (1988) Watertown: 45 (1944)
Wheaton: 105 (1922) Wheaton: 40 (1924)

Record Precipitation:
Aberdeen: 1.28" (1918)
Kennebec: 1.69" (1945)
Mobridge: 0.46" (1960)
Pierre: 0.96" (1941)
Sisseton: 1.05" (1983)
Timber Lake: 1.67" (1980)
Watertown: 1.25" (1987)
Wheaton: 1.57" (1980)


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