北方多地暖如常年4月初 南方明起再迎降水江南局地有大雨

Group 1 - The majority of China is entering a warming phase, with the highest temperature reaching 20°C in regions from southern North China to the Huanghuai area, comparable to early April temperatures [2][3] - The temperature drop is expected on February 15 due to a cold air mass affecting Northeast, North China, and Huanghuai regions, leading to a significant decrease in temperatures [2][4] - Public should be cautious about temperature changes and prepare for cold weather, especially during early morning and late evening outings [2][3] Group 2 - Rainfall in southern China is expected to increase starting tomorrow, with heavy rain and thunderstorms forecasted in parts of Jiangnan [3][4] - The upcoming three days will see a new round of precipitation in southern regions, with potential impacts on travel during the Spring Festival due to reduced visibility and slippery roads [4]