Large-scale rain and snow cooling affects China, local temperature drop exceeds 12℃

China News Service, Beijing, October 17 (Reporter Chen Su) The reporter learned from the China Meteorological Administration on the 17th that due to the influence of strong cold air, China experienced widespread precipitation, strong winds, and cooling weather from the night of the 16th to the 18th, with the local temperature drop exceeding 12°C.

Fang Chong, chief forecaster of the Central Meteorological Observatory, said that due to the intersection of cold and warm air, heavy precipitation, strong winds and strong cooling weather have occurred in many places in China on the 16th.

In terms of precipitation, on the 16th, heavy rain occurred in parts of northern Ningxia, central and southwestern Shaanxi, southern Shanxi, central and southeastern Henan, northern Chongqing, central and western Hubei, and southeastern Yunnan. Heavy rain or heavy rainstorms occurred in Wuxi, Chongqing, and Honghe, Yunnan. Light to moderate snow or sleet occurred in parts of northern Xinjiang, central and western Gansu, eastern Qinghai, and northern Sichuan Plateau. From 9:00 on the 16th to 8:00 on the 17th, the largest 24-hour precipitation in the country occurred in Honghe, Yunnan, reaching 129 mm. From 23:00 on the 16th to 15:00 on the 17th, the average rainfall in Beijing was 48.3 mm, which was a heavy rainfall level; the average rainfall in the urban area was 51.7 mm, which was a heavy rainfall level. In terms of cooling, temperatures in northern Xinjiang, western Qinghai, western Gansu, and western Inner Mongolia dropped by 6 to 10°C, with local cooling rates exceeding 12°C.

The Central Meteorological Observatory predicts that from the 17th to the 18th, there will be moderate to heavy rains, local heavy rains or heavy rains in North China, Northeast China, Huanghuai, Jianghuai, Jianghan, northern Jiangnan and Chongqing; there will be rain and snow in high-altitude areas such as northern Xinjiang, Gansu, Qinghai, Tibet, northeastern Inner Mongolia and northern Heilongjiang. Shandong, Henan, Anhui, Hubei and other places will have strong convective weather.

Affected by the strong cold air, the temperature in the northwest region, North China, Northeast China, Huanghuai, Jianghuai, Jianghan, western and northern Jiangnan has dropped by 4 to 8°C, with local temperatures dropping by more than 10°C. Some areas are accompanied by winds of magnitude 4 to 6 and gusts of magnitude 7 to 9.

Fang Chong analyzed that this round of strong cold air has the characteristics of wide rainfall range, obvious cooling by strong winds, strong extreme rainfall season in the north, and strong convective weather. Rain and snow will have certain adverse effects on transportation, urban operations, and outdoor tourism. The public needs to be prepared for wind and cold. Agricultural production needs to be implemented in different categories, and autumn harvest plots need to be harvested and dried during the window period before rain or between rainfalls.