A broad zonal subtropical ridge is situated north of LUPIT. 一个广阔的带状副热带高压正处于卢碧北面。
CHOI-WAN is expected to turn north gradually into the weakness between the subtropical highs, and a typical recurvature scenario follows. 彩云将逐渐转向偏北移动,横过副热带高压间的弱点,其后于副高西北部转向东北移动。