This Day in National/World Weather History ...
 27 March 1857 → A tornado cut a 100-yard wide path through Augusta, KY, then crossed the Ohio River before lifting on the Ohio side. Two tobacco warehouses were thrown into the river.
 27 March 1890 → Several tornadoes hit the Ohio and Tennessee Valleys. After crossing the Ohio River from Illinois, an F4 tornado cut a swath from Livingston County to Daviess County, KY killing 21 and injuring 170.
 27 March 1977 → In heavy fog a Pan Am Boeing 747 was struck by a KLM Boeing 747 on a runway in Tenerife, Canary Islands after the KLM crew mistook an air traffic control radio transmission as clearance for take-off. 582 passengers were killed in the worst air disaster until September 11, 2001.
 27 March 1994 → A tornado outbreak on Palm Sunday took 42 lives in AL, GA, SC, and NC. A church near Piedmont, AL collapsed when it was struck by one of the tornadoes, resulting in 20 fatalities.
 27 March 2006 → Two people were killed when a tornado struck Hamburg, Germany around 7pm. It was part of a large area of severe storms that swept through Germany, the Netherlands, France, and Belgium, resulting in 300,000 power outages.

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August 13, 1987:

A succession of thunderstorms produced rainfall that was unprecedented in 116 years of precipitation records at Chicago, Illinois during an 18 hour period from the evening of the 13th to the early afternoon of the 14th. The resulting flash flood was the worst to ever strike the Chicago metropolitan area, causing 3 deaths and water damage that amounted to 221 million dollars worth. O Hare International Airport received an event total of 9.35 inches of rain in 18 hours, shattering the previous 24 hour record of 6.24 inches. For a period of about 24 hours, the airport was only accessible from the air as all roads were blocked by high water, including the Kennedy Expressway.

Record Highs: Record Lows:
Aberdeen: 112 (1965) Aberdeen: 35 (1964)
Kennebec: 114 (1965) Kennebec: 45 (2012)
Mobridge: 107 (1938) Mobridge: 44 (2004)
Pierre: 108 (1965) Pierre: 48 (2012)
Sisseton: 104 (1965) Sisseton: 39 (1964)
Timber Lake: 102 (1939) Timber Lake: 42 (2004)
Watertown: 102 (1965) Watertown: 35 (1964)
Wheaton: 100 (1984) Wheaton: 38 (1924)

Record Precipitation:
Aberdeen: 1.02" (1895)
Kennebec: 1.30" (1980)
Mobridge: 0.75" (1927)
Pierre: 1.35" (1997)
Sisseton: 1.75" (1989)
Timber Lake: 0.38" (1934)
Watertown: 1.28" (1945)
Wheaton: 1.52" (2006) is the U.S. government's official web portal to all federal, state and local government web resources and services.