Analysis of Hail Processes Caused by a Supercell Storm

Li Gao, Luan Li, Nan Li, Yongjiang Yu and Ben Niu
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Li Gao: Taizhou Meteorological Bureau, China
Luan Li: Wuhu Meteorological Bureau, China
Nan Li: School of Atmospheric Physics, Nanjing University of Information Science and Technology, China
Yongjiang Yu: Fujian Institute of Meteorological Sciences, China
Ben Niu: Wuhan Central Meteorological Observatory, China

Oceanography & Fisheries Open Access Journal, 2020, vol. 11, issue 5, 89-92

Abstract: Hail, as a product of convective storms, is mostly produced by powerful supercells. The hail processes of a supercell, occurred in Zhejiang Province of China on March 21, 2019, are analyzed by using the conventional data and the S-band dual polarization radar data of Ningbo. The results show that: the front of the high trough, the shear line of 850hPa and the surface cold front provide suitable dynamic conditions for the supercell; the maintenance of the surface front and the strong vertical wind shear extending eastward are the main reasons for the eastward propagation and long life history of the storm. The appearance of hook echo, front inflow notch (FIN), rear inflow notch (RIN) and bow echo provide the basis for the forecast of hail. The large reflectivity factor, the jump of the vertical integrated liquid water content (VIL) and the VIL density (VILD) larger than 6g/m3 have better indication significance for hail occurrence.

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Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:adp:jofoaj:v:11:y:2020:i:5:p:89-92

DOI: 10.19080/OFOAJ.2020.11.555823

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