Good afternoon, Sunday, March 3, 2024, the 23rd day of the first lunar month, we continue to focus on the weather changes. The Beijing Meteorological Research Institute updated the meteorological data at noon today, showing the precipitation forecast for North China and surrounding areas from the early morning of the 5th to the daytime. The black and gray areas in the map indicate sleet or snowfall, mainly concentrated in Shanxi, northern Shaanxi, northern Hebei to the central and western regions, Beijing, Tianjin and other places, among which the northern part of Shanxi, northwest Hebei, northwest Beijing and other places will also usher in moderate to heavy snow. The blue and green areas represent the rainfall area, most of Henan, southeastern Hebei, Shandong and other places will have more obvious rainfall, especially in the central and eastern parts of Shandong, Jiangsu and other places, there may be light to moderate rain, local moderate to heavy rain.
Let's take a look at the precipitation** map from daytime to night on the 5th. According to the latest meteorological cloud map, during the day today, the central and eastern parts of China are controlled by the continental warm high pressure ridge, with less cloud cover, and most of the Huanghuai region in North China is mainly sunny. With the end of the influence of cold air, southerly winds gradually strengthen, transporting a large number of warm air masses to the northern regions. In the afternoon, the temperature in Zhengzhou, Henan Province, climbed to 143. It feels very warm. However, according to the latest meteorological data, from tomorrow night, the Siberian cold trough will affect our country again, and a new round of cold air and precipitation processes will sweep over most areas. This round of precipitation was caused by the combination of cold air and warm and humid airflow, and there was significant rainfall in eastern Henan, Shandong and south of the Huaihe River due to the convergence of warm and humid airflow. In the northern and western parts of North China, due to the influence of cold air and terrain, the temperature will be low, and snow or sleet will occur.
Taking Zhengzhou as an example, **Meteorological Observatory**, the local temperature will continue to rise during the day tomorrow, and the maximum temperature will reach about 16. However, from the night of the 4th to the day of the 5th, with the southward movement of warm and humid airflow and the development of rainfall, the temperature in Zhengzhou will drop significantly, and the maximum temperature will return to single digits again. However, after this round of rain, the temperature in most parts of the north will rise rapidly and show a warmer state again.
At present, the precipitation process from 4 to 5 days has entered the 48-hour forecast time limit. According to the numerical forecast data updated at noon today, after the afternoon of the 4th, under the combined influence of the convergence of low-level humid airflow and cold air, rain and snow will occur in Huanghuai and other places in North China. Due to the recent rise in temperature in the Huanghuai area, Shandong, Henan, southeastern Hebei, southern Shanxi and other places are mainly rainfall. However, from day to night on the 5th, as the cold air moves southward, there may be a short-term snowfall in the hilly areas of the Shandong Peninsula. There will be light to moderate snow or sleet in northern and central Shanxi, northern and western Hebei, Beijing, Tianjin, etc. In terms of precipitation, most areas are of light rain (snow) level, but the water vapor conditions in central and eastern Shandong are more favorable, and heavy rainfall of more than 10 mm may occur. In addition, the northern part of Shanxi, the northern part of Beijing, the northern part of Hebei, and the central and southern parts of Inner Mongolia will also have heavy snowfall due to the terrain, with moderate to heavy snowfall in some areas.
According to the new snow cover map released by the numerical forecast ECMWF, there will be snowfall in northern Shaanxi, central and northern Shanxi, central and southern Inner Mongolia, northern and western Hebei, northwest Beijing, western Liaoning and other places, and the depth of new snow cover is generally between 2 5 cm.
Finally, the official forecast of the ** Meteorological Observatory shows that on the 4th and 6th, under the influence of cold air, most of the central and eastern regions will have 4 6 cooling from west to east, and the local drop in Jiangnan, South China and other places can reach 8 10. In terms of precipitation, there was light to moderate snow (rain) or sleet in parts of the southeast of Northwest China and the central and northern parts of North China, with localized heavy snowfall; There was light to moderate rain in Huanghuai, Jianghuai, Jianghan, northern and western Jiangnan, northern South China, and eastern Guizhou, among which there were heavy to heavy rains in parts of southern Jianghuai and northeast Jiangnan.