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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March 9, 1993:

High winds gusting in excess of 50 mph moved east across South Dakota behind a strong cold front. Peak wind gusts reported included 62 mph at Pierre and 49 mph at Aberdeen. In addition, high winds flipped over a mobile home on top of a car and a utility shed near The Oahe Reservoir. Also, a semi tractor trailer was overturned while crossing Ft. Randall Dam. An office trailer was also tipped over at the same location.


Record Highs: Record Lows:
Aberdeen: 65 (1913) Aberdeen: -20 (1951)
Kennebec: 74 (1936) Kennebec: -18 (1996)
Mobridge: 73 (1911) Mobridge: -15 (1951)
Pierre: 70 (1936) Pierre: -13 (1996)
Sisseton: 61 (1902) Sisseton: -13 (1984)
Timber Lake: 67 (1988) Timber Lake: -16 (1948)
Watertown: 59 (1911) Watertown: -13 (1984)
Wheaton: 56 (1990) Wheaton: -17 (1951)

Record Precipitation: Record Snowfall:
Aberdeen: 0.50" (1918) Aberdeen: 5.0" (1918)
Kennebec: 0.62" (1940) Kennebec: 4.5" (1970)
Mobridge: 0.88" (2010) Mobridge: 3.0" (1946)
Pierre: 0.71" (2010) Pierre: 4.3" (1970)
Sisseton: 0.42" (1971) Sisseton: 3.0" (1960)
Timber Lake: 0.37" (1986) Timber Lake: 4.0" (1918)
Watertown: 0.11" (1999) Watertown: 4.0" (1918)
Wheaton: 0.43" (2002) Wheaton: 6.0" (2002)


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