高空急流轴倾斜以及急流出口区右侧强辐散场的出现要早于暴雨的发生。

The incline jet axis and strengthened convergence happen earlier than the rainfall does.

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高空急流出口区南侧的偏南风低空急流加强了风暴的入流强度，为风暴提供了有利的风场环境和水汽条件。

Sountherly lower level jet of exit region on the south side of upper level jet enhances the inflow intensity of storm which provide the plenty of vapor for the convective systems.

youdao

高空急流出口区南侧的偏南风低空急流加强了风暴的入流强度，为风暴提供了有利的风场环境和水汽条件。

Sountherly lower level jet of exit region on the south side of upper level jet enhances the inflow intensity of storm which provide the plenty of vapor for the convective systems.

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