According to the latest weather information, seasonal changes in atmospheric circulation occurred on June 23^rd, causing an intensified movement of the western Pacific subtropical high (WPSH), with significant increase of warm and humid air. Starting from June 24^th, Changzhou has entered the rainy season, which is slightly later than normal and is expected to last a bit longer. Normally the rainy season would come between June 18^thand 19^thand last around 22 days.