This Day in National/World Weather History ...
 23 October 1091 → England's earliest known tornado was also one of its strongest on record. It has been rated as an EF4, and devastated central London. The church at St. Mary le Bow was badly damaged with four rafters, each 26 feet long, driven 22 feet into the ground. Other churches in the area were demolished, as were over 600 houses. London Bridge was destroyed.
 23 October 1761 → A violent hurricane struck New England, causing tremendous damage in Rhode Island and Massachusetts.
 23 October 1920 → Tetsuya Fujita, inventor of the Fujita Scale, was born.
 23 October 2002 → Visibility was reduced to less than 100 meters during the Australian Dust Storm. It was the worst dust storm in 30 years.

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May 24, 1960:

A tornado touched down about 7 miles northwest of Roscoe and destroyed a small shed near a country schoolhouse. Funnel clouds were also observed in Hosmer area, near Eureka, and 30 miles West of Aberdeen. An unofficial report of 4 inches of rain fell at Hosmer.

May 24, 2008:

A supercell thunderstorm produced seven tornadoes in Dewey County. Since these tornadoes remained in open country, all were rated EF0.


Record Highs: Record Lows:
Aberdeen: 99 (1926) Aberdeen: 25 (1897)
Kennebec: 105 (1926) Kennebec: 19 (1924)
Mobridge: 90 (1928) Mobridge: 24 (2002)
Pierre: 90 (1959) Pierre: 28 (2002)
Sisseton: 90 (2010) Sisseton: 26 (2002)
Timber Lake: 99 (1926) Timber Lake: 29 (2002)
Watertown: 95 (1926) Watertown: 20 (1897)
Wheaton: 94 (1950) Wheaton: 28 (1924)

Record Precipitation:
Aberdeen: 0.71" (1973)
Kennebec: 0.93" (1965)
Mobridge: 2.71" (1944)
Pierre: 1.70" (1944)
Sisseton: 2.73" (1973)
Timber Lake: 1.07" (1987)
Watertown: 1.30" (1906)
Wheaton: 1.42" (1973)


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