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 28, 1977:

A slow moving storm system affected South Dakota from March 28th through March 30th, 1977. The storm produced heavy snow in the west and thunderstorms in the east. Northerly winds gusting to 50 miles an hour in the west created blizzard conditions as the snow totals mounted. Some areas in western Butte, Pennington, northern Shannon, and Lawrence counties received over 20 inches of snow. With drifts exceeding 6 to 8 feet many people in the west thought it was the worst blizzard in a quarter century. A few locations in the northern Black Hills received over 4 feet of snow. Because of blocked roads westbound traffic was halted on I-90 and many schools and businesses were forced to close for several days. Across the eastern portion of the state rains of over 1" fell in many areas. Milbank even reported walnut size hail.


Record Highs: Record Lows:
Aberdeen: 82 (1946) Aberdeen: -10 (1913)
Kennebec: 85 (1946) Kennebec: -7 (1899)
Mobridge: 83 (1946) Mobridge: -4 (1913)
Pierre: 87 (1946) Pierre: 5 (1944)
Sisseton: 82 (1946) Sisseton: -4 (1964)
Timber Lake: 80 (1963) Timber Lake: 0 (1944)
Watertown: 78 (1946) Watertown: -5 (1969)
Wheaton: 73 (1986) Wheaton: -3 (1969)

Record Precipitation: Record Snowfall:
Aberdeen: 1.80" (1900) Aberdeen: 18.0" (1900)
Kennebec: 0.94" (1940) Kennebec: 7.5" (1928)
Mobridge: 0.70" (1931) Mobridge: 8.5" (1965)
Pierre: 1.17" (1905) Pierre: 5.0" (1965)
Sisseton: 0.66" (1940) Sisseton: 6.0" (1956)
Timber Lake: 0.58" (1956) Timber Lake: 7.0" (1965)
Watertown: 1.71" (1940) Watertown: 7.0" (1965)
Wheaton: 2.06" (1940) Wheaton: 7.0" (1956)


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