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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April 24, 1948:

A significant tornado (F2) moved Northeast from South of Castlewood to near Goodwin. Barns were destroyed on two farms. Also on this day, two other tornadoes were observed in South Dakota. One moved from Turner County on into Minnehaha County, injuring two people. The other touchdown 3 miles Southeast of Sioux Falls, destroying barns and other buildings on the west edge of Brandon.

April 24, 2010:

An EF-4 tornado killed 10 people in 3 Mississippi counties. It injured 146 along its 149 mile track in the span of almost 3 hours. This was the widest tornado in the state’s recorded history (1.75 miles).


Record Highs: Record Lows:
Aberdeen: 92 (1962) Aberdeen: 17 (1956)
Kennebec: 92 (1962) Kennebec: 19 (1931)
Mobridge: 90 (1962) Mobridge: 18 (1928)
Pierre: 93 (1962) Pierre: 25 (1934)
Sisseton: 91 (1962) Sisseton: 19 (1956)
Timber Lake: 89 (2012) Timber Lake: 20 (1928)
Watertown: 87 (1962) Watertown: 18 (1934)
Wheaton: 91 (2009) Wheaton: 20 (1930)

Record Precipitation: Record Snowfall:
Aberdeen: 1.29" (2010) Aberdeen: 2.3" (1973)
Kennebec: 1.04" (1929) Kennebec: Trace (1956)
Mobridge: 0.78" (1953) Mobridge: Trace (1967)
Pierre: 1.03" (1990) Pierre: Trace (1990)
Sisseton: 0.95" (1948) Sisseton: 4.0" (1937)
Timber Lake: 1.32" (1953) Timber Lake: 6.0" (1965)
Watertown: 1.52" (1953) Watertown: 1.0" (1917)
Wheaton: 1.91" (1937) Wheaton: Trace (1953)


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