Shulou(Shulou.com)11/24 Report--

China Meteorological Administration (CMA) launched a level 3 emergency response today, and the Central Meteorological Observatory continued to issue a yellow alert for cold wave, CTOnews.com reported on November 27.

According to the China Meteorological Administration, temperatures in most parts of northern and central-eastern China are expected to drop by 10 ℃ to 16 ℃ from 27 to 30 days, with a drop of more than 18 ℃ in some areas, accompanied by northerly winds of 4 to 6, gusts of 7 to 9, and local levels of 10 or more. Sand and dust weather will occur in eastern and southern Xinjiang basins, western Gansu and central and western Inner Mongolia.

According to news released by the National Satellite Meteorological Center, Fengyun satellites are also monitoring cold air activities at the same time as the cold wave hits. At 06:00 in the morning on November 27 (Beijing time, the same below), the 24-hour temperature variation images of multi-height layers of FY-4A interferometric atmospheric vertical sounder (GIIRS) show that there are large negative temperature regions over Kazakhstan, West Siberian Plain and northern Xinjiang, which extends upward from 850hPa to several height layers, of which the temperature variation range of 850hPa is more than-15 ℃. The variable temperature profile near 90oE shows that the negative temperature below 400hPa is more than-10 ℃, and the cold air mass is very deep.

FY-4A Satellite Interferometric Atmospheric Vertical sounder (GIIRS) Multi-altitude 24-hour temperature change Image (in ℃) at 06:00 on November 27, 2022 | from the National Satellite Meteorological Center, the same below

Image of FY-4A Satellite Interferometric Vertical Atmospheric sounder (GIIRS) 24-hour temperature profile (unit: ℃) at 06:00 on November 27, 2022, the FY-4A meteorological satellite water vapor image shows that the water vapor dark area corresponds to the above negative temperature region, and a frontal cloud system in the eastern part of the dark area is affecting eastern Xinjiang. As the frontal cloud system moves eastward, the cold air area at the rear of it will gradually move to the east by south, affecting western Inner Mongolia, Gansu, Qinghai and other places, and will bring a large-scale strong cooling weather to China.

FY-4A Meteorological Satellite Water Vapor Images 09:00 on November 27, 2022

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