明起新一股冷空气来袭 东北等地降雪明显增强部分地区有暴雪

Group 1 - The central and eastern regions of China will experience a temporary rise in temperatures before a new cold air mass arrives, leading to a significant drop in temperatures by early December [2][4] - The cold air mass is expected to cause temperature drops of 8°C to 10°C in some areas, with cities like Shenyang experiencing a drop from a high of 11°C to a low of -7°C [2][4] - Southern regions are less affected by the cold air, maintaining higher daytime temperatures but experiencing lower nighttime temperatures, resulting in a notable temperature difference of around 15°C [2][3] Group 2 - The dry conditions in southern regions are unprecedented for this time of year, with relative humidity dropping below 20% in several areas, such as 9% in Hubei [4][5] - In contrast, northeastern regions are expected to see increased snowfall, with heavy snow warnings in places like central Heilongjiang, where snow accumulation could exceed 10 centimeters [5][6] - The upcoming days will see continued dry and sunny weather in the central and eastern regions, while the northeast will face frequent snow, necessitating caution for travel due to slippery roads and reduced visibility [8]