Strong precipitation in the south, cold air in the north

According to the Central Meteorological Observatory, from 12 to 13 days, there was a strong precipitation process in Jiangnan and South China. Heavy rain occurred in most of the south of the Yangtze River and in the north and south of South China. 11 nights to 12th, affected by cold air, there will be 4-6 °C in the eastern part of the northwestern region and the eastern part of the southwestern region, and the local area will cool down at 8 °C. There will be 4~6 northerly winds in the eastern part of the northwestern region. From the night of the 11th to the 12th, there was a weak precipitation process in the winter wheat area, and the precipitation was 1 to 5 mm.

An important weather

1. Strong precipitation in parts of southern Jiangnan

From 12 to 13 days, there was a strong precipitation process in Jiangnan and South China. Heavy rain occurred in most of the south of the Yangtze River and in the central and northern parts of South China. Some areas had heavy rain (60-100 mm).

2, cold air affects the northern region

11 nights to 12th, affected by cold air, there will be 4~6°C in the eastern part of the northwestern part and the eastern part of the southwestern part of the country, and the local area will cool down at 8°C. Some parts of Ningxia and Gansu have frost, and the northwestern part has 4~6 grades. Northerly wind. Affected by the previous cold air, on the night of the 11th, there were 4 to 6 northerly winds in the central and eastern parts of Inner Mongolia and most of the northeast. There are sand or floating dust weather in the Xinjiang Basin in Xinjiang.

3. There is precipitation in winter wheat area

From the night of the 11th to the 12th, there was a weak precipitation process in the winter wheat area, and the precipitation was 1 to 5 mm.

Second, the specific forecast for the next three days

From 20:00 on the 11th to 20:00 on the 12th, there are light snow (rain) or sleet in southwestern Xinjiang, northern Tibet, southern and eastern Qinghai, central Gansu, Ningxia, northeastern Inner Mongolia, northeastern Jilin and other places; southern Heilongjiang There are small to moderate rains or showers in southeastern Tibet, southeastern part of northwestern China, western and southern parts of North China, most of Huanghuai, Jianghan, Jianghuai, Jiangnan, southern China, southwestern part of the country, western and southern Yunnan, and northern Taiwan. Among them, there are heavy rains and local heavy rains (50-70 mm) in parts of eastern Guizhou, southwestern and eastern Hunan, northeastern Guangxi, north-central Jiangxi, southwestern Zhejiang, and northwestern Fujian. Some areas of southeastern Chongqing, northeastern Guizhou, most of Hunan, northwestern and western Jiangsu, southern Zhejiang, and northern Fujian have short-term heavy precipitation. Thunderstorms or hailstorms occur in parts of southeastern Chongqing, northeastern Guizhou, southwestern Jiangxi, and western Fujian. Xinjiang's Nanjiang Basin, the northwestern part of the country, the eastern part of Inner Mongolia, the northeast, and the north of China have 4 to 6 winds, and the gusts can reach 7 to 8; parts of the southern Xinjiang basin have sand or dusty weather. There will be 5 to 7 southwest winds in the northern part of the Bohai Sea and the Yellow Sea.

From 20:00 on the 12th to 20:00 on the 13th, there are small to medium snow (rain) or sleet in the northeastern part of Inner Mongolia, northwestern Heilongjiang, southern Qinghai, and northeastern Tibet; southeastern Tibet, most of southern Jiangnan, most of southern China There are moderate to heavy rains in the areas, including heavy rains (50-70 mm) in parts of southern Hunan, northeastern Guangxi, northwestern Guangdong, eastern Jiangxi, southwestern Zhejiang, and northwestern Fujian. Strong convective weather such as short-term thunderstorms and hail. There are 4 to 5 winds in the central and eastern parts of Inner Mongolia and the north central part of Northeast China. Some parts of the western part of the southern Xinjiang Basin have sand or dusty weather.

From 20:00 on the 13th to 20:00 on the 14th, there are light snow (rain) or sleet in western Tibet, northern Sichuan Plateau and central Heilongjiang; Xinjiang along the western Tianshan area, southeastern Tibet, northeastern northeast, southwestern part of the country, south of the Yangtze River There are small to moderate rains in southern China, and some parts of southeastern Tibet have heavy rain. There are 4 to 5 winds in most of Inner Mongolia and Northeast China.

It is expected that in the next two days, the rainy weather in the south will continue to “hegemony”. The southern part of North China, Huanghuai, Jianghuai and other places are also bathed in drizzle. Because the northern rainfall covers the winter wheat area, it is more favorable for soil growth. Based on the meteorological weather forecast and combined with the current agricultural situation, the following recommendations are made:

1. At present, winter wheat will enter the key growth stage from south to north, and the growth and yield formation in the later stage will face various meteorological disaster risks, and there are still uncertain factors in the formation of yield. In the northern winter wheat area, field management should be strengthened according to the seedling condition and sensation, and timely cultivation should be carried out to increase the temperature and ensure the healthy growth of wheat.

2. Some areas in the south of Jiangnan and southern China have strong precipitation. It is necessary to do the post-rain drainage work of vegetable fields, strengthen the management of rape fields, pay attention to clearing the ditch and reduce the humidity in the field, and at the same time seize the favorable opportunity to catch the rapeseed and flower pods. fat.

3, Jiangnan spring sowing area should avoid early precipitation of early rice in the case of strong precipitation; after transplanting early rice in South China, fertilization should be carried out according to the appropriate condition of seedlings to promote tillering of seedlings.