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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October 17, 1984:

A snowstorm struck northern Utah producing a record 18 inches in 24 hours at Salt Lake City, and 40 inches at the nearby Alta Ski Resort. The town of Magna, located ten miles west of Salt Lake City, did not receive any snow at all. The storm was responsible for a fifty vehicle pile-up along Interstate 15 near Farmington UT.


Record Highs: Record Lows:
Aberdeen: 90 (1910) Aberdeen: 15 (1976)
Kennebec: 89 (1940) Kennebec: 10 (1922)
Mobridge: 85 (1914) Mobridge: 12 (1948)
Pierre: 83 (1945) Pierre: 15 (1948)
Sisseton: 86 (1945) Sisseton: 12 (1976)
Timber Lake: 82 (1945) Timber Lake: 9 (1948)
Watertown: 85 (1910) Watertown: 14 (1976)
Wheaton: 82 (1961) Wheaton: 13 (1952)

Record Precipitation:
Aberdeen: 1.17" (1998) Aberdeen: 5.0" (1905)
Kennebec: 0.68" (2007)
Mobridge: 0.62" (1994) Mobridge: 1.0" (1990)
Pierre: 0.94" (2007) Pierre: 2.3" (1990)
Sisseton: 1.67" (1998) Sisseton: 5.0" (1990)
Timber Lake: 0.47" (1998) Timber Lake: 2.0" (1990)
Watertown: 1.19" (1968) Watertown: 5.0" (1905)
Wheaton: 1.75" (1996)


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