For the warm-type, clouds also extended into the prefrontal area because of more humid and warmer southerlies as well as stronger convergence and upward motion in the lower troposphere.

• 两类锋面之云区均主要分布在锋上与锋后，唯暖型上滑锋锋前仍有些许云量，此应与锋前近地层南风分量带来较暖湿空气，且锋前有较大之低层辐合与较大之上升运动有关。