拉尼娜状态持续，我国今冬冷暖起伏大

Group 1 - The current La Niña state in the equatorial central and eastern Pacific is expected to continue until early 2026, but the likelihood of it developing into a La Niña event is relatively low [2] - La Niña causes colder sea surface temperatures in the eastern Pacific and warmer temperatures in the western Pacific, impacting global climate anomalies [3] - The occurrence of La Niña events can lead to colder winter temperatures in central and eastern China due to enhanced winter monsoon winds [3] Group 2 - The winter climate trend in China is expected to be close to normal or slightly warmer, with significant fluctuations in temperature and overall reduced precipitation [4] - Northern regions may experience severe weather events such as strong winds, temperature drops, and heavy snowfall, which could impact agriculture and energy demand [4] - Southern regions may face risks of drought due to higher temperatures and lower precipitation, necessitating improved water resource management and fire prevention measures [4][5]