This Day in National/World Weather History ...
 1 November 1870 → General Albert J. Myer, head of the U.S. Signal Corps Weather Service, ordered the first simultaneous gathering of weather data across the United States. The information was used to produce the first national weather maps.
 1 November 2000 → The most widespread and severe flooding since 1947 was underway across parts of Britain as ten rivers in the UK flowed out of their banks.
 1 November 2001 → Road crews were clearing snow from the highways of western North Dakota while winds were gusting to 55 mph 125 miles away in Bismarck.

This Day in Weather History Archive

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July 15, 1885:

The first of three damaging tornadoes hit 7 miles NNE of Highmore and moved to the northeast. Two small homes were destroyed before the funnel turned to the east, then northeast and north before lifting. This tornado was estimated to have F2 strength and was seen in all directions for 20 miles. The second tornado appeared to be motionless 3 miles east of Harrold, and then moved east to Holabird where it destroyed two homes and dissipated. A third tornado, this one with an estimated F3 strength, formed to the west of Highmore and moved east into town, then lifted about 4 miles east of town. Three homes were destroyed and about 20 other buildings were damaged at Highmore. A farmer was killed 2 miles east of town. Losses totaled about $55,000, which included many new buildings, including a church and a skating rink.

July 15, 1986:

Thunderstorms brought locally heavy rainfall to portions of Walworth to Marshall Counties. Three inches of rain in an hour and a half was reported in extreme northwest Marshall County. The highest rainfall amount was seven inches southeast of Bowdle. The rains caused lowland flooding, with water over several roads in Marshall County, including Highway 10, two miles east of Britton. In Britton, 3.86 inches of rain was reported.

July 15, 2001:

Slow moving thunderstorms continually raked northern Perkins County during the afternoon and evening hours with several reports of 4 to 5 inches of rain. Water began flooding ranchers' yards by 715 pm MST. White Butte Road and several other minor roads were closed after water covered the roads. Two houses and a van were destroyed by flood waters that ran 5 to 10 feet deep. The worst flooding occurred in normally dry low-lying draws, not creeks.

July 15, 2006:

Record heat occurred across central and north central South Dakota and into parts of northeast South Dakota. Afternoon high temperatures ranged from 105 to as high as 120 degrees. Record highs were set at Pierre, Mobridge, Kennebec, and Timber Lake. Pierre set a new all-time record high of 117 degrees and Mobridge tied their all-time record high of 116 degrees. Kennebec and Timber Lake both hit a record high temperature of 112 degrees. The coop observer station 17 miles west southwest of Fort Pierre tied the state record high temperature with 120 degrees. Other high temperatures for the day were 116 degrees at Onida and Mission Ridge, 114 degrees at Murdo, 112 degrees at Redfield and Blunt, 111 degrees at Stephan, 110 degrees at Conde and Gann Valley, and 109 degrees at Aberdeen.

July 15, 2011:

A large upper level high pressure area built over the region bringing very hot and humid conditions. This was the worst heat wave to hit the region since July 2006. Beginning on Friday July 15th and persisting through Wednesday July 20th, many locations experienced high temperatures in the 90s to lower 100s, with low temperatures in the 70s at night. In addition, humidity levels rose to extreme levels at times. Surface dew point temperatures in the 70s and lower 80s brought extreme heat index values of up to 110 to 125 degrees. The dewpoints were some of the highest ever recorded in the region. The dewpoint at Aberdeen tied the previous record with 82 degrees. Sisseton also tied their record with 83 degrees. Watertown came a degree shy of tying their record with 80 degrees. The prolonged heat took its toll on livestock with fifteen hundred cattle perishing during the heat. Numerous sports and outdoor activities were cancelled. Some of the highest heat index values included; 110 degrees at Mobridge; 111 degrees at Watertown; 113 degrees at Miller and Gettysburg; 114 degrees at Wheaton and Faulkton; 116 degrees at Pierre; 118 degrees at Sisseton; and 121 degrees at Aberdeen. The highest heat index value occurred at Leola with a temperature of 98 degrees and a dewpoint of 82 degrees, the heat index hit 125 degrees.


Record Highs: Record Lows:
Aberdeen: 114 (1931) Aberdeen: 41 (1912)
Kennebec: 112 (2006) Kennebec: 36 (1912)
Mobridge: 116 (2006) Mobridge: 45 (1912)
Pierre: 117 (2006) Pierre: 52 (1961)
Sisseton: 105 (2006) Sisseton: 48 (1952)
Timber Lake: 112 (2006) Timber Lake: 39 (1912)
Watertown: 106 (1931) Watertown: 38 (1912)
Wheaton: 110 (1931) Wheaton: 46 (1924)

Record Precipitation:
Aberdeen: 1.26" (1983)
Kennebec: 1.80" (1915)
Mobridge: 1.37" (1945)
Pierre: 1.00" (1900)
Sisseton: 1.09" (1986)
Timber Lake: 1.55" (1915)
Watertown: 0.91" (1943)
Wheaton: 1.24" (1980)


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