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A hailstone that fell in Vivian, South Dakota, on July 23, 2010, holds the United States record for the largest size with a diameter of 8 inches and heaviest weight at 1.94 pounds.
The storm brought hail as wide as 4 cm (1.6 in). [citation needed] 23 July 2010 Vivian, South Dakota, US The largest diameter hailstone known, measuring 7.87 in (20.0 cm) in diameter and weighing 1.9375 lb (0.88 kg), fell on Vivian during an exceptional hailstorm. [27] 5 October 2010 Phoenix, Arizona, US
The heaviest hail stone on record in the United States had a reported diameter of 11 inches (27.94 centimeters) and weighed nearly 2 pounds (907 grams). It was discovered near Vivian, South Dakota ...
The study sees an increase in hailstones larger than two inches in size, but a decrease in the smaller hail. ... a hailstone in Vivian, South Dakota, on June 3, 2010, measured 8 inches across.
Vivian is located in western Lyman County 1 mile (1.6 km) north of Interstate 90, with access from Exit 214, and 1.5 miles (2.4 km) east of U.S. Route 83.Via I-90 it is 23 miles (37 km) east to Kennebec, the Lyman county seat, and the same distance west to Murdo, the seat of neighboring Jones County.
Hail is a form of solid ... 18.622 in (47.3 cm) circumference; Vivian, South Dakota, 23 July 2010. [45] Largest circumference officially measured: 18.74 ...
Hail forms inside cumulonimbus clouds, which produce severe weather, ... This whopper of an ice ball was found after a violent storm in Vivian, South Dakota, in July 2010, according to NOAA’s ...
Hail Heaviest officially ... Largest diameter officially measured: 20 cm (8.0 in) diameter, 47.3 cm (18.625 in) circumference; Vivian, South Dakota, USA, 23 July 2010.