Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province
Based on data from conventional observations, ERA5, intensive automatic weather stations, satellite cloud images and weather radar, a sever local storm in Wenshan on 28 April 2021 was analyzed. The results are as follows. (1) This event took place under the synoptic condition of the weaken stationar...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Torrential Rain and Disasters
2022-04-01
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| Series: | 暴雨灾害 |
| Subjects: | |
| Online Access: | http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2022.02.005 |
| _version_ | 1797786978467446784 |
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| author | Ying MIN Jihua SUN Man WANG Li ZHU Zhiguo WANG Qianyuan YANG |
| author_facet | Ying MIN Jihua SUN Man WANG Li ZHU Zhiguo WANG Qianyuan YANG |
| author_sort | Ying MIN |
| collection | DOAJ |
| description | Based on data from conventional observations, ERA5, intensive automatic weather stations, satellite cloud images and weather radar, a sever local storm in Wenshan on 28 April 2021 was analyzed. The results are as follows. (1) This event took place under the synoptic condition of the weaken stationary front and the strong subtropical high. Several factors, such as moderate vertical wind shear, unstable stratification and large convective available potential energy, provided favorable environmental conditions for the occurrence of storm. (2) The combined action of the surface convergence line formed by the stationary front and terrain triggered the generation of convection. The ground convergence line formed by outflow boundary of thunderstorm high and ambient wind played an important role in strengthening the storm. (3) The severe local storm was caused by single-cell storm. Radar echoes had characteristics of inclined structure, hook echo, sidelobe echo, rapid declines of the core of reflectivity factor and jumped VIL. The characteristics had a certain indication in monitoring and warning of hail. |
| first_indexed | 2024-03-13T01:16:26Z |
| format | Article |
| id | doaj.art-571c9d0f54c94a72a34d634494c34c04 |
| institution | Directory Open Access Journal |
| issn | 2097-2164 |
| language | zho |
| last_indexed | 2024-03-13T01:16:26Z |
| publishDate | 2022-04-01 |
| publisher | Editorial Office of Torrential Rain and Disasters |
| record_format | Article |
| series | 暴雨灾害 |
| spelling | doaj.art-571c9d0f54c94a72a34d634494c34c042023-07-05T10:09:55ZzhoEditorial Office of Torrential Rain and Disasters暴雨灾害2097-21642022-04-0141215115710.3969/j.issn.1004-9045.2022.02.0052812Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan ProvinceYing MIN0Jihua SUN1Man WANG2Li ZHU3Zhiguo WANG4Qianyuan YANG5Yunnan Meteorological Observatory, Kunming 650034Yunnan Meteorological Observatory, Kunming 650034Research Center for Disastrous Weather over Hengduan Mountains & Low-Latitude Plateau, CMA, Kunming 650034Yunnan Meteorological Observatory, Kunming 650034Yunnan Meteorological Observatory, Kunming 650034Yunnan Meteorological Observatory, Kunming 650034Based on data from conventional observations, ERA5, intensive automatic weather stations, satellite cloud images and weather radar, a sever local storm in Wenshan on 28 April 2021 was analyzed. The results are as follows. (1) This event took place under the synoptic condition of the weaken stationary front and the strong subtropical high. Several factors, such as moderate vertical wind shear, unstable stratification and large convective available potential energy, provided favorable environmental conditions for the occurrence of storm. (2) The combined action of the surface convergence line formed by the stationary front and terrain triggered the generation of convection. The ground convergence line formed by outflow boundary of thunderstorm high and ambient wind played an important role in strengthening the storm. (3) The severe local storm was caused by single-cell storm. Radar echoes had characteristics of inclined structure, hook echo, sidelobe echo, rapid declines of the core of reflectivity factor and jumped VIL. The characteristics had a certain indication in monitoring and warning of hail.http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2022.02.005severe local stormstationary frontsubtropical highsurface convergence linesingle-cell storm |
| spellingShingle | Ying MIN Jihua SUN Man WANG Li ZHU Zhiguo WANG Qianyuan YANG Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province 暴雨灾害 severe local storm stationary front subtropical high surface convergence line single-cell storm |
| title | Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province |
| title_full | Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province |
| title_fullStr | Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province |
| title_full_unstemmed | Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province |
| title_short | Analysis of"4.28"sever local storm caused stationary front of Wenshan in Yunnan Province |
| title_sort | analysis of 4 28 sever local storm caused stationary front of wenshan in yunnan province |
| topic | severe local storm stationary front subtropical high surface convergence line single-cell storm |
| url | http://www.byzh.org.cn/cn/article/doi/10.3969/j.issn.1004-9045.2022.02.005 |
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