This Day in National/World Weather History ...
 30 July 1119 → The earliest tornado reported on the European mainland struck Vysehrad, Czechia (today Prague, Czech Republic). It destroyed the palace of a Czech duke.
 30 July 1997 → Two waterspouts moved onshore in northern Virginia Beach, VA. One tracked into Norfolk.
 30 July 1999 → At nine o'clock in the morning Chicago recorded its highest ever dew point temperature of 82 degrees. The temperature at the time was 88, resulting in a heat index of 108. The dew point is an indication of the amount of moisture in the air.

This Day in Weather History Archive

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July 29, 1896:

A destructive hailstorm originated in the central part of Edmunds County near Ipswich, passing southeast. This storm destroyed crops and broke glass in many windows along a path to the eastern portions of Spink County.

July 29, 2003:

Winds of 70 mph, to over 100 mph caused a lot of damage in and around Redfield east to Frankfort and south to Tulare. The winds and hail damaged many roofs, crops, outbuildings, downed power lines and poles, and also downed many branches and trees. In Redfield, a trailer home with two occupants, were rolled three to four times over 75 feet. The trailer home rolled over a pickup truck and damaged it. Much of the contents in the trailer home were damaged and the trailer home itself was a total loss. The people inside the home received minor injuries. A garage was also blown apart in Redfield with the car damaged inside. At the grain elevator in Redfield, several vehicle windows were broke out by airborne sand and rocks. A street light was ripped from the concrete in Redfield. East of Redfield, a 70 foot silo of over 70 tons was crumbled to the ground and a large tractor shed was blown apart with damage to the contents. Wind equipment by Redfield measured winds at 106 mph before the power went out.

July 29, 2004:

A record setting flash flood occurred over part of the Greenville, South Carolina, during the morning hours. Six to eight inches of rain fell just east of Berea, a northwestern suburb, which caused the Reedy River through downtown Greenville crested 9 feet above flood stage. This was the highest level since 1908.

July 29, 2006:

Record heat and high humidity affected central, north central, and northeast South Dakota for the end of July. Heat indices rose to 105 to 115 degrees across the area. Record high temperatures were set at Pierre, Mobridge, Kennebec, Timber Lake, and Aberdeen. Pierre rose to 111 degrees on each of the three days. Mobridge rose to 111 degrees on the 28th and to 112 degrees on the 30th. Several record highs of 108 and 109 degrees were set at Timber Lake and Kennebec in the three day period. Aberdeen set a record high of 106 on the 30th.


Record Highs: Record Lows:
Aberdeen: 109 (1933) Aberdeen: 42 (1899)
Kennebec: 116 (1933) Kennebec: 45 (1925)
Mobridge: 104 (1933) Mobridge: 44 (2004)
Pierre: 111 (2006) Pierre: 47 (1971)
Sisseton: 103 (1975) Sisseton: 40 (1952)
Timber Lake: 110 (1917) Timber Lake: 45 (2004)
Watertown: 107 (1933) Watertown: 44 (1925)
Wheaton: 104 (1917) Wheaton: 45 (1925)

Record Precipitation:
Aberdeen: 1.00" (1950)
Kennebec: 1.43" (1945)
Mobridge: 2.06" (1941)
Pierre: 1.13" (1979)
Sisseton: 2.20" (1989)
Timber Lake: 1.65" (1941)
Watertown: 1.20" (1950)
Wheaton: 1.09" (1989)


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