This Day in National/World Weather History ...
 20 November 1900 → A major tornado outbreak struck Tennessee, Alabama, Mississippi, and Arkansas, including two F4s. In Tunica County, MS an F4 tornado killed 15 people and threw the bodies half a mile downstream. Another F4 tornado was heading right for the center of Columbia, TN, but turned to the north at the last minute and grazed the northwest side of town. Still, 27 people lost their lives homes were "turned into kindling wood." Unpicked cotton was stripped from the stalks and deposited upon trees making them appear to be covered with snow.
 20 November 1944 → "Darkness at Noon." After a decade of drought, dust storms frequented Australia. On this day a thick dust blanketed Mildura for eight hours, and the railway lines to Balranald and Moulamein were blocked by sand.
 20 November 1979 → A blizzard struck Cheyenne, WY producing a record 19.8 inches of snow in 24 hours, and a record total of 25.6 inches in 40 hours. Strong winds created huge drifts stopping all transportation.

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May 15, 1968:

An F5 tornado moved through Butler, Chickasaw, Floyd, Franklin, and Howard Counties in northeast Iowa. The tornado moved northeast from north of Hansell, passing east of Aredale and Marble Rock, before devastating Charles City. The tornado grew larger and more intense as it approached Charles City. The huge funnel passed directly through town, destroying 337 homes, and causing about $30 million in damage. The tornado continued to the northeast hitting Elma and it caused another $1.5 million in damages. From there the tornado turned to the north and dissipated south of Chester, 4 miles south of the Minnesota border. Nearly 2000 homes were damaged or destroyed. All 13 deaths occurred in Floyd County. 450 injuries were reported in Floyd County and 12 injuries in Howard County. Another F5 tornado moved north-northeast from southwest of Oelwein to Maynard and east of Randalia in Fayette County, IA. Homes were leveled and swept away in both Oelwein and Maynard. The warning sirens sounded for only 15 seconds before power failed in Oelwein. Nearly 1000 homes were damaged or destroyed along the path, and 34 people had to be hospitalized. Almost 1,000 families were affected. In addition to these F5 tornadoes, an F2 tornado touched down 6 miles south of Cresco, IA and two weak F1 tornadoes touched down in Dodge County, MN. Also, baseball size hail fell in Fayette County, IA.


Record Highs: Record Lows:
Aberdeen: 103 (1931) Aberdeen: 23 (2014)
Kennebec: 98 (1894) Kennebec: 18 (1959)
Mobridge: 94 (1931) Mobridge: 27 (1959)
Pierre: 96 (1936) Pierre: 25 (2014)
Sisseton: 100 (1934) Sisseton: 21 (1959)
Timber Lake: 92 (1936) Timber Lake: 22 (1940)
Watertown: 96 (1894) Watertown: 23 (1959)
Wheaton: 96 (2001) Wheaton: 25 (1921)

Record Precipitation: Record Snowfall:
Aberdeen: 2.00" (1991) Aberdeen: 0.5" (1929)
Kennebec: 1.00" (1943)
Mobridge: 1.60" (1916)
Pierre: 0.70" (1908)
Sisseton: 1.41" (1965)
Timber Lake: 1.72" (1991) Timber Lake: 0.5" (1929)
Watertown: 1.45" (1962)
Wheaton: 2.40" (1947)


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