Two waves of cold air hit one after another during the National Day holiday, and temperatures in many places will hit record lows in six months. Rainfall will be heavy in the south during the first half of the holiday.

On the first day of the National Day holiday (October 1), the cold air will continue to move eastward and southward, and many places in the south will also join the cooling ranks. From the 3rd, a new wave of cold air will appear. Under the continuous influence of two waves of cold air, temperatures in many places in the north and south will hit record lows in the second half of this year, and many places in the south of the Yangtze River will also begin the process of entering autumn. During the first half of the National Day holiday, rainfall was widespread in the south and continued in some areas of the southwest, requiring prevention of secondary disasters.

Two waves of cold air hit one after another

Temperatures in many places in the north and south will hit record lows in six months

Yesterday, the strongest cold air in the second half of this year continued to affect our country. The temperature in northern Qinghai, central and eastern Gansu, Ningxia, northern Shaanxi, central and southern North China, and eastern Northeast China dropped by 6 to 10°C, with local temperatures ranging from 12 to 16°C.

On the first day of the National Day holiday, this cold air will continue to move eastward and southward. Huanghuai, Jianghuai, Jiangnan, central and northern parts of South China and other places will experience a cooling of 4 to 8°C, with local temperatures around 10°C. At the same time, temperatures in the north will gradually begin to rise.

However, cold air is active during the holidays, and it is expected that another cold air relay will move southward from October 3 to 4. At that time, the temperature in the north will fluctuate again. Some areas such as Shaanxi, Gansu, Ningxia, and northern China will cool down by 8 to 10 degrees Celsius. At the same time, many places will be accompanied by northerly winds of magnitude 4 to 6, and gusts of magnitude 7 to 8.

Cold air is coming one after another, and temperatures in many places in the north and south will hit record lows in the second half of this year. In big cities, today the highest temperatures in Harbin, Changchun, Zhengzhou, Hefei, Wuhan, Hangzhou and other places will set new low records for the second half of this year; the lowest temperatures will also hit new lows in large areas. The lowest temperatures in Wuhan, Nanjing and other places may drop to 10 to 11°C on the 6th.

During the National Day holiday, the coldness in many places in the north and south has become significantly worse. The public needs to put on clothes in time to prevent catching cold. As the temperature fluctuates and declines, the front edge of autumn may also advance southward, and many places in the south of the Yangtze River are expected to start the autumn process during the National Day holiday.

Heavy rainfall in the south during the first half of the holiday

Northern China and other places will experience rainfall from the 2nd to the 4th

It is expected that before October 5, affected by the intersection of cold and warm air currents, rainfall will be larger in the south, rainy weather will continue in the southwest and other places, and strong convective weather may occur in some areas in Jiangnan, South China and other places. From October 2 to 4, as the high-altitude trough moves eastward, there will also be a precipitation process from west to east in North China and Northeast China.

The Central Meteorological Observatory predicts that today there will be moderate to heavy rain in parts of southern Shaanxi, northern and southeastern Chongqing, western Hubei, western Hunan, Guizhou, eastern Yunnan, northwest Guangxi, eastern and southern Guangdong, southern Zhejiang, Fujian and other places. Among them, there will be heavy rain in parts of eastern and southern Guizhou, northwest Guangxi, southeastern and central Guangdong, southern Zhejiang, and western Fujian.