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It is estimated that a hailstone of 1 cm (0.39 in) in diameter falls at a rate of 9 m/s (20 mph), while stones the size of 8 cm (3.1 in) in diameter fall at a rate of 48 m/s (110 mph). Hailstone velocity is dependent on the size of the stone, its drag coefficient , the motion of wind it is falling through, collisions with raindrops or other ...
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 ...
Stones just larger than golf ball-sized are one of the most frequently reported hail sizes. [39] Hailstones can grow to 15 centimetres (6 in) and weigh more than 500 grams (1 lb). [ 40 ] In large hailstones, latent heat released by further freezing may melt the outer shell of the hailstone.
One local storm report submitted to the Weather Service on Wednesday cataloged a 3.5-inch hailstone near 55th and McCormick Streets in Shawnee. A 3.5-inch hailstone is about the size of a softball.
At 8:31 p.m. CST on May 4, the sheriff's office notified West Central Texas residents "up to 3 feet of hail" had fallen between the town of Millersview and O.H. Ivie Reservoir, a distance spanning ...
Severe is defined as hail 1 to 2 inches (25 to 51 mm) diameter, winds 58 to 75 miles per hour (93 to 121 km/h), or a tornado. [11] Significant severe is defined as hail 2 inches (51 mm) in diameter or larger, winds 75 mph (65 knots, 120 km/h) or more, or a tornado of strength EF2 or stronger. [1] [12]
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 the heaviest weight at 1.94 pounds. Show ...