From March 19 to 22, a medium-intensity cold air affects most of the central and eastern regions of China, and some areas can cool down to 10 °C to 12 °C. The process has little effect on winter wheat.

Affected by the previous cold air, on March 19, the northeastern region of China cooled by 4 °C to 8 °C, and in some areas it could reach 10 °C. From the 19th to the 22nd, a medium-intensity cold air affected most of the central and eastern regions of China. On the 20th, most of the northern regions cooled down by 4 °C to 8 °C. On the 21st, the southern part cooled much, and in some areas, the temperature dropped to 10 °C to 12 °C.

 

In addition, from the 19th to the 21st, most of the southwestern region, the eastern part of the northwestern region, the southwestern part of North China, the majority of the Huanghuai, the Jianghan, the southern part of the Yangtze River, and most of southern China will have a precipitation process. During the period, the southern region continued to be rainy and rainy, with moderate to heavy rain in some areas.

 

Hou Yingyu, deputy director of the National Meteorological Center's Agricultural Meteorological Center, told reporters that this cold air has little effect on winter wheat. This precipitation is conducive to the conservation of the northern wheat area. Moderate cooling is also beneficial to prolonging the differentiation of young ears; however, the southern rainy weather It will have a slight impact on the flowering of rapeseed and the sowing of early rice. Areas that have not yet been sown should be prepared in time for soaking and germination of the land preparation and early rice, and seize the "cold tail warm head" to timely sow to ensure that the early rice is successfully planted.

 

From 08:00 on the 21st to 08:00 on the 22nd, there are small to medium snow or sleet in the southwestern part of Xinjiang, the south-central part of the central and eastern parts of the Qinghai-Tibet Plateau, and the southeastern part of the northwestern part of the country. Among them, there is heavy rain in the southeastern part of Tibet, and there are Heavy snow, local blizzard; small to moderate rains in the central and southern parts of Huanghuai and most of the south, including southeastern Chongqing, northeastern Guizhou, northwestern and central Hunan, southern Susong, northern Zhejiang, Shanghai, northeastern Jiangxi, etc. In some areas, there are heavy rains and local heavy rains; there are 4 to 6 winds in the northeastern part of the northwestern region, most of Inner Mongolia, southeastern China, and northern China; the Yellow Sea, the East China Sea, and the Taiwan Strait will have 7-8 winds and 9 winds. .

 

From 08:00 on the 22nd to 08:00 on the 23rd, there is little to medium snow (rain) or sleet in the southeastern part of the Qinghai-Tibet Plateau; there are small to moderate rains or showers in the southwest of Jianghan and most of the south of the Yangtze River. There are 4 to 6 winds in the northern part of Xinjiang, the central part of the northwestern region, Inner Mongolia, and the northeast, and 7 to 9 winds in the Shankou area of ​​Xinjiang; the southern Xinjiang Basin and parts of the western Inner Mongolia have sand or floating dust; the East China Sea, the Taiwan Strait, and the bus The Straits, the South China Sea, and the Beibu Gulf will have grades 7-8, and gusts of 9-10 winds.

 

　　 The specific forecast is as follows: