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.

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December 7, 1963:

Winds of 50 to 60 mph resulted in blowing snow all day on the 7th, which reduced visibilities to near zero and produced snow drifts several feet deep in many areas. Snowfall in eastern South Dakota was generally from 3 to 7 inches with 1 to 2 inches in the western part of the state. Storm total snowfall included 8 inches at Sisseton, 5 inches at Watertown and Wheaton, 4 inches at Aberdeen, and 2 inches at Mobridge.

December 7, 1971:

Heavy snow of 7 to 12 inches was reported in north central South Dakota on the 7th. Timber Lake and Eagle Butte each reported 12 inches of snow. Strong winds accompanied the snow and caused extensive drifting. Drifts up to 15 feet were reported in sheltered areas near Lemmon. 7 inches fell at Mobridge and 11 inches fell at Selby. McIntosh received 4 inches.


Record Highs: Record Lows:
Aberdeen: 60 (1918) Aberdeen: -24 (1976)
Kennebec: 67 (1918) Kennebec: -11 (2006)
Mobridge: 62 (1918) Mobridge: -17 (1927)
Pierre: 58 (1965) Pierre: -11 (1972)
Sisseton: 51 (1990) Sisseton: -21 (1972)
Timber Lake: 62 (1918) Timber Lake: -21 (1936)
Watertown: 56 (1918) Watertown: -17 (1936)
Wheaton: 60 (1918) Wheaton: -23 (1972)

Record Precipitation: Record Snowfall:
Aberdeen: 0.30" (1957) Aberdeen: 5.0" (1957)
Kennebec: 0.30" (1951) Kennebec: 5.0" (1902)
Mobridge: 0.63" (1971) Mobridge: 7.1" (1971)
Pierre: 0.19" (1951) Pierre: 3.0" (1958)
Sisseton: 0.16" (1979) Sisseton: 1.5" (1963)
Timber Lake: 0.72" (1971) Timber Lake: 12.0" (1971)
Watertown: 0.60" (1927) Watertown: 5.0" (1927)
Wheaton: 0.16" (1927) Wheaton: 1.5" (1927)


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