主要风暴系统袭击美国，影响超过 100M 的龙卷风、暴风雪、野火和洪水。 Major storm system hits US, affecting over 100M with tornadoes, blizzards, wildfires, and floods.

一个大型风暴系统正在席卷美国，影响超过 1 亿人，遭受龙卷风、暴风雪、野火和洪水等恶劣天气的影响。 A major storm system is sweeping across the US, affecting over 100 million people with severe weather including tornadoes, blizzards, wildfires, and flooding. 国家气象局警告说，北部有强风、暴风雪，南部有火灾风险。 The National Weather Service warns of strong winds, blizzard conditions in the north, and fire risks in the south. 预计中部地区将出现带有龙卷风和冰雹的严重雷暴，而预计到周日东海岸将发生山洪暴发。 Severe thunderstorms with tornadoes and hail are expected in the central regions, while flash flooding is predicted along the East Coast by Sunday.