It plays an important role in stimulating the convection that the weak cold air intrudes the area of the inverted trough, and conduce to warm frontogenesis, thus leading to the heavy storm.

• 西风带弱冷空气侵入台风北伸倒槽后，在黄淮之间有明显的暖锋锋生特征，是触发倒槽区域中尺度对流发展和暴雨产生的重要动力机制。