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Any thunderstorm which produces hail that reaches the ground is known as a hailstorm. [5] An ice crystal with a diameter of >5 mm (0.20 in) is considered a hailstone . [ 4 ] Hailstones can grow to 15 cm (6 in) and weigh more than 0.5 kg (1.1 lb).
The 1490 Qingyang event may have been due to a large comet breaking up in the atmosphere, or a hail storm. Sources generally considered reliable say more than 10,000 killed, but the official History of Ming does not give a number of casualties. [60] [61] [62] 30 April 1888 Moradabad (Uttar Pradesh), Northern India
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]
Any thunderstorm that produces hail that reaches the ground is known as a hailstorm. [61] Thunderclouds that are capable of producing hailstones are often seen obtaining green coloration. Hail is more common along mountain ranges because mountains force horizontal winds upwards (known as orographic lifting ), thereby intensifying the updrafts ...
Hail shaft Severe thunderstorms containing hail can exhibit a characteristic green coloration. [13] Like other precipitation in cumulonimbus clouds hail begins as water droplets. As the droplets rise and the temperature goes below freezing, they become supercooled water and will freeze on contact with condensation nuclei. A cross-section ...
Extreme hail damage, not often seen in the Carolinas, was caused by the storms, including ripped-off siding, leaves stripped from trees and shredded vinyl fences. Sunday morning, piles of hail had ...
Hailstorm over Truk Lagoon is a book by Klaus Lindemann about the shipwrecks of Truk lagoon. The wrecks were caused by Operation Hailstone , a US Navy aerial attack on the Japanese -held islands of the lagoon on 17 and 18 February 1944.
Updrafts reform new cells continually at the leading edge of system with rain and hail following behind. Individual thunderstorm updrafts and downdrafts along the line can become strong, producing large hail and strong outflow of straight-line winds ahead of system. Tornadoes are only occasionally reported. [2]