Group 1 - California is experiencing severe storms caused by an "atmospheric river," resulting in at least 3 fatalities and power outages affecting 12,000 households as of December 25 [3] - The state government has declared a state of emergency in multiple areas due to the ongoing winter storm, which has led to reports of casualties related to extreme weather [3] - Southern California recorded new daily rainfall records on December 24, with areas previously affected by wildfires experiencing small-scale mudslides [3] Group 2 - An "atmospheric river" is a narrow corridor in the atmosphere rich in water vapor that transports warm, moist air from low-latitude regions to mid-latitude areas, causing heavy rainfall or snowfall [4] - This phenomenon is common along the U.S. West Coast and is a primary source of precipitation in the region [4]
美国遭强风暴侵袭，3人死亡
中国能源报·2025-12-26 01:14