This Day in National/World Weather History ...
 21 December 1944 → The Battle of the Bulge lasted from December 16, 1944 to January 25, 1945. By this time Germany was clearly losing World War II and Hitler was hoping to regain advantage if the attack would occur in bad weather to prevent the Allied Air Forces from being effective. As the Americans occupied the strategic position of Bastogne, the German army surrounded the city. However because of bad weather, planes were unable to fly and provide supplies by air drop to the American Forces. On December 29 the weather finally cleared up and much needed supplies were received. The Americans then launched a counteroffensive, but soldiers had to fight the cold and snow as well.
 21 December 1967 → The City Hall and a large portion of the business district of Potosi, MO was destroyed by an F4 tornado. There were 52 injuries and 3 deaths.

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May 9, 1999:

Heavy rains of two to five inches fell in Lyman County during the late evening hours which caused flash flooding on Medicine Creek. The KOA Campgrounds near Kennebec were flooded including the main facility. Several roads were also flooded and damaged along Medicine Creek. Storm total rainfall in Kennebec was 3.40 inches. Also, a weak F0 tornado touched down briefly three miles south of Reliance with no damage reported. Winds gusting to 70 mph knocked over a 4000 bushel holding bin. This damage was reported 6 miles north of Revillo.


Record Highs: Record Lows:
Aberdeen: 95 (1911) Aberdeen: 21 (1966)
Kennebec: 98 (1916) Kennebec: 23 (1966)
Mobridge: 99 (1934) Mobridge: 25 (1966)
Pierre: 93 (1934) Pierre: 28 (1966)
Sisseton: 90 (1992) Sisseton: 25 (1945)
Timber Lake: 92 (1916) Timber Lake: 23 (1945)
Watertown: 93 (1928) Watertown: 19 (1966)
Wheaton: 91 (1928) Wheaton: 21 (1925)

Record Precipitation: Record Snowfall:
Aberdeen: 1.68" (1927) Aberdeen: 0.4" (1979)
Kennebec: 0.88" (1931)
Mobridge: 1.10" (1999) Mobridge: 0.7" (1979)
Pierre: 1.94" (1927) Pierre: 0.3" (1979)
Sisseton: 1.10" (1905) Sisseton: 0.5" (1905)
Timber Lake: 0.86" (1986)
Watertown: 1.50" (1926) Watertown: 1.0" (1979)
Wheaton: 1.10" (1988)


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