拉尼娜状态持续，对我国今冬有何影响？

Group 1 - The La Niña phenomenon has been observed in the equatorial central and eastern Pacific since October 2023, and it is expected to last until early 2026, although the likelihood of it forming a significant event is low due to its duration being less than five months [1] - La Niña conditions typically lead to colder temperatures in central and eastern China during winter, as the prevailing cyclonic circulation enhances the winter monsoon [1] - The current La Niña state may result in a warmer winter in China, with significant temperature fluctuations and overall reduced precipitation, particularly in southern regions [2] Group 2 - The impact of La Niña includes potential drought conditions in southern China due to suppressed moisture transport from the western Pacific and surrounding areas [2] - Specific weather patterns expected this winter include strong cold snaps and precipitation events in northern regions, while southern areas may experience higher temperatures and lower rainfall, increasing the risk of winter-spring droughts [2] - Preparations for potential meteorological disasters are advised as the La Niña state continues, with localized weather phenomena expected across various regions [2]