This Day in National/World Weather History ...
 21 April 1887 → Prescott, KS was directly hit by an F4 tornado, resulting in 12 fatalities and 80 homes destroyed. The tornado was part of a family of tornadoes that reduced farms to kindling along a 60 mile path from Anderson County, KS to Bates County, MO. It was one of the most expensive tornado disasters of the 19th Century.
 21 April 1967Tornadoes ravaged northern Illinois. An F4 occurring at 3:50 pm in Belvidere left 24 dead and 500 injured. Seven people were killed at a shopping center, and at least 13 were killed at Belvidere High School. Another F4 at 5:24 pm left 33 dead and 500 injured. This funnel hit Palos Hills, Oak Lawn, Hometown, and Evergreen Park southwest of Chicago.
 21 April 2002 → An F3 tornado struck Wayne County, IL with winds as high as 200mph. Incredibly, only one life was lost.

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June 15, 1935:

This estimated F3 tornado moved east from 17 miles southwest of Onida. There was near F4 damage to one farm about 9 miles SSW of Onida. The house was destroyed, 60 cattle were killed, and five people were injured. At another farm, the home shifted over the storm cellar, trapping a family. Property damage was estimated at $25,000.

June 15, 1977:

There were thunderstorms with heavy rain and some hail which began on the 15th and continued into the 16th. At Watertown, almost 6.9 inches of rain fell during this two day period. In Deuel County, Gary received 6 inches, Altamont 5.5 and Brandt, 4.5 inches in Goodwin, and 3.70 inches in Clear Lake. Other amounts include; 4.85 inches at 3NE of Raymond; 4.57 inches in Clark; 4.21 at 1NE of Bryant; and 3.97 inches in Castlewood.

June 15, 1978:

Numerous severe thunderstorms developed over all of central South Dakota. Tornadoes, funnel clouds, hail up to baseball size, and wind gusts to near 80 mph caused wide spread destruction. Estimated loss was between 20-25 million dollars. The Governor declared some counties disaster areas. Six trailers were destroyed and a home was unroofed northwest of Aberdeen. Fifteen people were injured from these storms.

June 15, 1979:

Heavy rain began during the evening hours and continued into the morning hours on the 16th. Heavy rains were estimated between 5 to 6 inches, causing flash flooding south of Watertown. Some rainfall amounts include; 2.43 inches in Watertown; 2.07 in Castlewood; and 2.05 inches in Clear Lake. Hail caused severe crop damage in Hughes County.


Record Highs: Record Lows:
Aberdeen: 105 (1933) Aberdeen: 36 (1968)
Kennebec: 110 (1936) Kennebec: 35 (1989)
Mobridge: 103 (1936) Mobridge: 43 (1961)
Pierre: 109 (1936) Pierre: 42 (1989)
Sisseton: 100 (1933) Sisseton: 39 (1904)
Timber Lake: 104 (1936) Timber Lake: 42 (1957)
Watertown: 100 (1933) Watertown: 33 (1917)
Wheaton: 99 (1979) Wheaton: 36 (1969)

Record Precipitation:
Aberdeen: 2.97" (1953)
Kennebec: 2.77" (1901)
Mobridge: 2.71" (1953)
Pierre: 2.52" (1923)
Sisseton: 2.88" (1953)
Timber Lake: 1.74" (1953)
Watertown: 4.35" (1977)
Wheaton: 1.95" (1984)


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