全国速冻地图出炉！本轮寒潮虽猛烈但“来去匆匆”

Core Points - The first cold wave of the second half of the year is significantly impacting China's central and eastern regions, with average daily temperature drops of 6°C to 10°C, and some areas experiencing drops of 12°C to 14°C [1][6][8] - The cold wave is characterized by rapid and severe temperature decreases, with cities like Shenyang experiencing a drop from 17.5°C to 1°C in just one day, and Harbin and Xining expected to fall below -10°C for the first time this season [3][6] - The cold wave is expected to expand southward, with major cities like Xi'an, Jinan, Hefei, and Wuhan forecasted to see temperatures drop below 0°C for the first time [8] Temperature and Weather Impact - The cold wave is causing a significant drop in temperatures across a wide area, with the freezing line moving south to regions including Hubei, Anhui, and Jiangsu [6][8] - The weather is also bringing increased precipitation, particularly in the southwest, with rain and snow expected in areas like Shaanxi, Henan, and Hubei [5] - The cold wave is expected to be short-lived, with temperatures in the north beginning to rise again after the 18th, leading to fluctuations in temperature [8] Wind Chill Effect - The cold wave's impact is exacerbated by strong winds, which enhance the "wind chill effect," making temperatures feel colder than they are [9][11] - Humidity also plays a crucial role in the wind chill effect, with moist air conducting heat away from the body more effectively [11] - Recommendations for winter clothing include wearing windproof and warm garments, and protecting the head to minimize heat loss [13]