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△National Sand and Dust Weather Forecast Map (Central Meteorological Observatory/Fa)
People's Voice of the World, April 13, Beijing Express In the blink of an eye, the "Qingming" of the traditional 24 solar terms has arrived. In the national weather stage this week (April 8-14), in the opinion of experts, the rainfall in the south first decreased and then increased, mainly on the 11th and 14th, and the core area was in the south of the Yangtze River. The northern region was affected by two shortwave troughs from the 8th to the 10th, and there was also weak precipitation. In addition, from the 12th to the 15th, a deeper upper-air trough moved eastward to cooperate with the Mongolian cyclone, resulting in precipitation, cooling, strong winds, and sand and dust in the north. Therefore, the temperature in Northeast China and North China fluctuates greatly.
△Numerical Model Forecast of Sand and Dust Weather Trend (Korea Meteorological Service/Fa)
Experts said that monitoring data showed that this afternoon (13th), the sand and dust in Inner Mongolia and Gansu advanced eastward. Among them, the PM10 concentration in Wuhai, Inner Mongolia, reached 6,258 micrograms/cubic meter at 16 o'clock, which was more than 10 times the "explosion" (PM10≥600 micrograms/cubic meter), and at the same time, Shizuishan, Ningxia at 18 o'clock, was also "exploded" because of sand and dust. Satellite images show a counterclockwise rotating cyclone over Mongolia with a large amount of dust on the east and south sides of the cyclone. In the future, this dust will move east and south. For this reason, tonight's Central Meteorological Observatory continues to issue a blue warning for sandstorms.
△ National Air Pollution Meteorological Conditions Forecast Map (Central Meteorological Observatory/Fa)
According to experts, the Central Meteorological Observatory predicts that from 20 o'clock on April 13 to 20 o'clock on the 14th, there will be sand or floating dust weather in parts of southern Xinjiang and the northern slope of the Tianshan Mountains, the central and western parts of Inner Mongolia, the central and western parts of Gansu, most of Ningxia, northern Shaanxi, northern Shanxi, and western Jilin, among which there are local sandstorms in southern Xinjiang and central and western Inner Mongolia. From the evening of the 14th to the 15th, the dust will also affect Beijing, Tianjin and Hebei.
△Numerical Model Forecast of Sand and Dust Weather Trend (Central Meteorological Observatory/Fa)
It is worth noting that industry insiders emphasized that it is not difficult to find that it is not difficult to find that as experts say, it can be seen from today's sand situation that the numerical model forecast of the Korea Meteorological Administration is weak, but it is actually stronger. The forecast of the Central Meteorological Observatory on the mainland has now slowed down the pace of eastward movement and southward movement. Sand and dust may enter Beijing from the night of the 14th to the morning of the 15th. After that, the sand and dust will affect the area to the southeast, and the numerical model prediction is still different. Our forecast has been adjusted to the north, and it is given along the middle and lower reaches of the Yangtze River. The South Korean side reported that it was relatively north, to the vicinity of Shandong. Therefore, it is necessary to make a further judgment according to the sand and dust situation during the day on the 14th. (Editor-in-charge/Xiangyu)
*Editor's Note:
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