Analysis of a Nontornadic Storm during VORTEX 95

Analysis of a Nontornadic Storm during VORTEX 95
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VORTEX 95 期间的非龙卷风暴分析

DOI:
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
Huaqing Cai
Huaqing Cai
中科院分区:
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文献类型:
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作者:
R. Wakimoto;Huaqing Cai

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Abstract Analysis of a supercell storm that did not produce a tornado near Hays, Kansas, is presented. A well-defined midlevel mesocyclone was apparent throughout most of the storm’s life cycle. Numerous shallow circulations were observed along the rear-flank gust front during the data collection period. Six of these circulations strengthened into intense low-level mesocyclones. Each of these mesocyclones failed to produce a tornado. The strongest low-level mesocyclone, referred to as vortex #4, underwent a life cycle that was consistent with other tornadic mesocyclones documented in the literature. These results illustrate that the presence of a long-lived mesocyclone at low levels is not sufficient for tornadogenesis to occur. The kinematic structure of the low-level mesocyclone that did not produce a tornado is compared with a tornadic mesocyclone from another storm in order to understand the characteristic differences between these circulations. The results lead to the conclusion that the presence of ...