Causes of late drought and crisp autumn weather

Futian

The hottest mid-summer season in the old calendar in my country is called "Futian". Generally from mid-July to mid-August. At this time, the Meiyu stationary front has moved to the middle and lower reaches of the Henghe River and the Northeast in early July. The middle and lower reaches of the Yangtze River are controlled by the "subtropical high", forming anticyclonic weather, dominated by downdrafts, with long sunshine, strong solar radiation, and low temperatures. High, evaporation is strong. Crops also grow quickly and farmland requires a lot of water. However, due to the single air mass, except for thunderstorms in local areas, there are no large rainy areas. Dry and hot weather generally occurs, so it is called "Fu Drought". During this season, afternoon temperatures in the middle and lower reaches of the Yangtze River generally reach 33 to 35°C, and high temperatures as high as 43 to 45°C are recorded in some places.