Pay attention to the prevention of cold dew in the late rice area in the south

According to the Central Meteorological Observatory, from 16 to 18, a new round of obvious precipitation will be ushered in the southeastern part of the northwestern region, the southwestern part of North China, the Sichuan Basin, and the northwestern part of Huanghuai, including the western Sichuan Basin, the central and southern Shaanxi, and the southwestern Shanxi. There are heavy rains in western Henan and other places, and the accumulated rainfall can reach 60-120 mm. From 16 to 18, a moderately strong cold air affects the north of the middle and lower reaches of the Yangtze River from north to south, and the temperature will drop by 4-8 °C. The local temperature drop in the central part of Inner Mongolia, northern North China and northeastern China can exceed 10 °C. Frost will occur in parts of central and eastern Inner Mongolia, northern Heilongjiang and parts of the west. In addition, on the 16th to the 18th, most of the southwest meteorological arid regions had showers on cloudy days, and the accumulated rainfall was generally less than 5 mm.

The specific forecast is as follows:

From 20:00 on the 15th to 20:00 on the 16th, there were moderate rains in the western part of the Sichuan Basin, the eastern part of the northwestern part of the country, the central and western parts of Shanxi, and the western part of Yunnan. The rainfall was generally 10 to 20 mm, including heavy rain or heavy rain in the eastern part of the northwestern part of the country. Up to 30 to 50 mm. There are sand or floating dust weather in the Xinjiang Basin in Xinjiang. Affected by cold air, the Bohai Sea and the Bohai Strait will have northeast winds of 7 to 8 and gusts of 9. Affected by "Locke", the eastern part of the East China Sea will have a north to northeast wind with a 7-8 level and a gust 9 level.

From 20:00 on the 16th to 20:00 on the 17th, there were moderate to heavy rains in the western part of the Sichuan Basin, the northern part of the western Sichuan Plateau, the southeastern part of the northwestern part, the southern part of North China, and the northwestern part of Huanghuai. The rainfall is generally 20-40 mm, of which the northern part of the Sichuan Basin There are heavy rains in parts of southern and southern Shaanxi, southwestern Shanxi, and northwestern Henan, with rainfall of 60-80 mm. There are 4-6 winds in central and eastern Inner Mongolia, northeastern China, and northern North China. Affected by cold air and “Locke”, the Bohai Sea and Bohai Strait will have northeast winds of 7-8 grades and gusts of 9; north and central seas of the Yellow Sea will have 6-8 grades north to northeast; the southern part of the Yellow Sea will have 5 to 7 northeast winds; the eastern part of the East China Sea will have 7 to 8 grades, and the gusts of 9 will go north to northwest.

From 20:00 on the 17th to 20:00 on the 18th, there were moderate to heavy rains in most parts of the Sichuan Basin, the northern part of the western Sichuan Plateau, the southeastern part of the northwestern region, the southwestern part of North China, and the northwestern part of Huanghuai. The rainfall was generally 20-40 mm, of which Sichuan In the northern and western parts of the basin, southwestern Shaanxi, and northwestern Henan, there are heavy rains with a rainfall of 50-70 mm. There are 4-6 winds in the central, eastern, northeast, north, and eastern Huaihe of Inner Mongolia. Affected by cold air and "Locke", the Bohai Sea, the Bohai Strait, and the northern part of the Yellow Sea will have 6 to 8 northeast winds; the central and southern parts of the Yellow Sea will have 7 to 8 grades and gusts of 9 northeast winds; The sea area will have a north to northeast wind with a 7-8 level and a gust 9 level.

Agricultural advice:

Shaanxi and Henan Jinyu will have strong precipitation, which is not conducive to the normal maturity and harvest of autumn harvest crops, and the quality of crops will decline. Experts suggest that all localities should do a good job of dehumidifying and dewatering, improve the ventilation and light transmission conditions in the field, and promote the full maturity of crops and timely harvest. Winter wheat and oilseed rape in the eastern part of the northwestern region, and rapeseed in the southwestern region will enter the sowing period in mid-September. All localities must pay close attention to the agricultural time and promptly plough the land to prepare for seeding.

The western and northern parts of Heilongjiang are in the maturity stage of soybeans and maize, and the initial frost may affect this.

In addition, according to the forecast of Hubei, Jiangxi, Fujian and other meteorological stations, due to the impact of cold air south, there will be rainfall and windy weather in the southern region, and the process will have a significant cooling. On the 18th to 20th of Hubei, there will be cold dew winds (that is, the late rice is cold and cold in autumn). In the north of Jiangxi Province, there will be cold dew in the north on the 19th and 21st. From the 18th, the temperature in Fujian will drop significantly, and some parts of the central and northern regions will also be cold in autumn. Production areas should be strengthened.