From the wind field, we can find that a series of anti-cyclones located to the southeastern and the northwestern sides along the Mei-Yu front, which make the frontal wind shear even enhanced. FSW类型则主要受到梅雨锋面及西南气流影响,从风场分布可明显观察到沿著梅雨锋面的东南及西北侧皆有数个反气旋环流系统排列,使得锋面处的风切更为增强。