El Niño's effects could lead to significant risks, including flash floods, landslides, and power outages. Repeated downpours and atmospheric rivers may overwhelm drainage systems, particularly in California and the southern U.S., causing damage to homes, roads, and infrastructure. In northern regions, milder temperatures could reduce snowfall, impacting winter sports and water resources. Severe thunderstorms in the Gulf Coast and Southeast may bring destructive winds, hail, and tornadoes, posing threats to life and property. Power outages caused by storms, ice, and flooding could disrupt heating, communication, and essential services, especially in areas unprepared for such conditions.