Folk proverb "A thunder strikes Huangmei in summer". What does Huangmei mean?

I don't know if you have heard of a folk proverb, which is often mentioned by many elderly people, right? Do thunder and lightning turn upside down in summer to make Huangmei? . Maybe many friends don't know what this means. In fact, this proverb is a meteorological proverb circulating in many areas of the people. This means that after the rainy weather has passed, if there is thunder in the sky on the day of the summer solar term, then the rainy season will be reversed. Huangmei in this meteorological proverb refers to rainy weather.

Generally speaking, in the summer solar term, the weather has entered midsummer. If there is thunder in the sky on a small summer day, it means that the cold air force in the north is still very strong, and it is easy to be replaced by the local warm climate, causing thunderstorms or rainy weather. Usually entering Little Xia Hou, the rainy weather in Jianghuai area will gradually end. For example, in the area north of the Huaihe River in Qinling Mountains, there will be easterly monsoon rainfall.

After entering the summer weather, there will be rainy weather in many areas. Because the weather is not so stable during the summer solar term, some extreme weather is likely to occur. In some areas, the cold air in the north is still relatively strong before and after entering the light summer. If the cold air reaches the middle and lower reaches of the Yangtze River, it may be evenly matched with the warm climate in the south, causing thunderstorms.

Moreover, every summer solar term, many crops grow particularly vigorously, such as early rice or spring corn, which is in a vigorous growth stage and is the most critical period for the growth and development of many crops. If it rains at this time, it is likely to have a certain impact on crops or vegetables such as soybeans or cotton. Therefore, it is suggested that you must observe the weather changes during this period and take good field management measures to avoid affecting the growth and development of crops or vegetables.