This Day in National/World Weather History ...
 1 August 1674 → A strong tornado struck Utrecht, Netherlands. It damaged several churches and almost all of the town's windmills.
 1 August 1983 → A thunderstorm at Andrews AFB in Maryland produced a microburst wind gust of 149 mph. Air Force One with President Reagan aboard had landed there just 10 minutes earlier.
 1 August 1986 → A powerful thunderstorm produced 100 mph winds and large hail in eastern Kansas and southwestern Missouri causing 71 million dollars damage, and injuring 19 persons. Crops were mowed to the ground and roofs were blown off buildings along its path, 150 miles long and 30 miles wide, from near Abilene to southeast of Pittsburg.

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July 21, 1940:

From near Miller, a tornado moved southeast, destroying a barn, garage, and two windmills. This tornado was estimated to be F2 strength.

July 21, 1987:

During the afternoon, an unusually severe thunderstorm moved northeast through northwest Wyoming and spawned the highest elevation F4 tornado ever documented. The tornado touched down in the Teton Wilderness Area, and created a massive blow down of trees as it travel north northeast. The distance traveled was 24.3 miles and ended along the Yellowstone River in the southeast corner of Yellowstone National Park. The path averaged 1.5 miles in width, reaching a maximum width of 2.5 miles.


Record Highs: Record Lows:
Aberdeen: 106 (1899) Aberdeen: 41 (1902)
Kennebec: 113 (1934) Kennebec: 41 (1947)
Mobridge: 108 (1960) Mobridge: 44 (1947)
Pierre: 110 (1934) Pierre: 46 (1947)
Sisseton: 101 (1960) Sisseton: 46 (1947)
Timber Lake: 105 (2007) Timber Lake: 48 (1947)
Watertown: 110 (1934) Watertown: 40 (1911)
Wheaton: 102 (1960) Wheaton: 51 (1915)

Record Precipitation:
Aberdeen: 2.03" (1939)
Kennebec: 1.50" (1978)
Mobridge: 1.42" (1966)
Pierre: 0.94" (1978)
Sisseton: 1.18" (1972)
Timber Lake: 1.36" (1966)
Watertown: 0.85" (1939)
Wheaton: 1.34" (1914)


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