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hail
- Sinônimos - Inglês
- small hail; graupel
- Definição1
- Precipitation in the form of balls or irregular lumps of ice, always produced by convective clouds, nearly always cumulonimbus.
- Fonte1
- AMERICAN METEOROLOGICAL SOCIETY. Glossary of meteorology. [S.l., última modificação 05 oct. 2015]. Disponível em: < http://glossary.ametsoc.org/wiki/Main_Page >. Acesso em: 19 out. 2021.
- Definição2
- A product of violent convection found in thunderstorms. In a storm, the strong vertical air swirls the raindrops above and below the freezing level. As a result, they are carried upward where they freeze. The particles grow by accumulation of water and snow at various levels and fall to the ground as hailstones, which can at times be larger than a golf ball. They fall either separately or agglomerated into irregular lumps.
- Fonte2
- KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Air traffic management. 15th ed. Montreal, 2007. (Doc. 4444- ATM/ 501)
- Nota Adicional1
- In aviation weather observations, hail is encoded A.
- Contexto
- Significant meteorological conditions in this context include the occurrence or expected occurrence of cumulonimbus or thunderstorm, moderate or severe turbulence, wind shear, hail, moderate or severe icing, severe squall line, freezing precipitation, severe mountain waves, sandstorm, dust storm, blowing snow, tornado or waterspout in the take-off and climb-out area.
- Subárea
- Aeronautical Meteorology
- Français
- grêle
- Imagem
A large hailstone, about 6 cm (2.36 in) in diameter.
