This Day in National/World Weather History ...
 21 September 1588 → After an unsuccessful battle with the English fleet, the Spanish Armada encountered strong storms and high winds off the coast of Ireland on its way back to Spain. 26 ships are believed to have been lost. The remaining ships limped back to Spain defeated and demoralized, ending the reign of the once unbeatable Spanish Armada.
 21 September 1894 → A huge tornado outbreak swept from Iowa through Minnesota to Wisconsin, with an unusual number of extremely violent tornadoes. The tornado that rampaged through Kossuth County, MN, was likely an F5 as homes and farms were wiped clean from the earth.
 21 September 1909 → A category 3 hurricane crossed the Gulf of Mexico and came ashore in southern Louisiana. The storm inflicted 120 mph winds on southeast Louisiana and took its storm surge 2 miles inland. There were about 371 fatalities despite the Weather Bureau having issued its first warnings for the storm three days earlier.
 21 September 1938 → The New England Hurricane was one of the most destructive and powerful storms ever to strike southern New England. The storm roared ashore over Long Island, NY at nearly 60 mph at the time of high tide. This created a deadly tidal surge, which submerged downtown Providence, RI under 20 feet of water. Hurricane force winds were felt throughout New England, with a gust to 186 mph at the Blue Hill Observatory in Milton, MA. The Great New England Hurricane of 1938 was responsible for over 500 deaths.

This Day in Weather History Archive

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August 14, 1898:

A deadly, estimated F4 tornado moved southeast from 12 miles northwest of Clear Lake, passing 7 miles north of town and ending about 4 miles west of Gary. Deaths occurred on two farms. One man was killed when the kitchen of his farm house was torn off. Five members of one family were killed along with two labors on another farm as every building was swept away. Buildings suffered heavy damage on eight farms. This was one of the earliest, estimated F4 tornadoes on record for South Dakota.

August 14, 2008:

Several severe thunderstorms developed along a cold front across parts of central and northeast South Dakota. Large hail, some flash flooding, and a couple of weak tornadoes occurred with these storms. An EF0 tornado touched down briefly at the Brown County fairgrounds, blowing over several tents and awnings. Another EF0 tornado touched down briefly in an open field causing no damage north of Stephan in Hyde County.

August 14, 2009:

A warm front brought severe thunderstorms with large hail up to the size of golf balls along with sixty mph winds to parts of north central and northeast South Dakota. In addition, very heavy rain fell across western Brown County with 2 to 4 inches of rain reported. This heavy rain brought flash flooding conditions. Numerous county roads and area fields were overrun with flowing water. The water level on Richmond Lake rose nearly a foot a day after the event from high inflows. This rapid rise in the lake level resulted in numerous boat and fishing docks being submerged. Several boats were also trapped under lift canopies due to the high water. There were reports of several boats breaking free of their mooring and floating toward the spillway.


Record Highs: Record Lows:
Aberdeen: 104 (1952) Aberdeen: 38 (1968)
Kennebec: 111 (1935) Kennebec: 40 (1929)
Mobridge: 109 (1935) Mobridge: 35 (1929)
Pierre: 114 (1937) Pierre: 44 (2004)
Sisseton: 100 (1952) Sisseton: 39 (1968)
Timber Lake: 107 (1937) Timber Lake: 39 (1929)
Watertown: 100 (1928) Watertown: 38 (1929)
Wheaton: 102 (1965) Wheaton: 40 (1968)

Record Precipitation:
Aberdeen: 1.25" (1908)
Kennebec: 0.82" (1908)
Mobridge: 1.34" (1951)
Pierre: 2.00" (1951)
Sisseton: 0.88" (1934)
Timber Lake: 1.46" (1949)
Watertown: 2.20" (1993)
Wheaton: 1.46" (1948)


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