The Pacific subtropicalanticyclone appears strong and large, its position leans toward south, and its ridge extends to west.
太平洋副热带高压大而强，位置偏南，脊点偏西。南半球冷空气活动比常年少而弱。
2
The formation of the warm dry lid over the southeast coastal region of china is mainly due to the advection of warm and dry air along the western side of subtropicalanticyclone.