El Niño is a weather phenomenon that occurs when the Pacific Ocean's surface temperatures become warmer than usual.
This warming can cause changes in weather patterns around the world, including in the US.
An El Niño winter in the US could mean warmer and drier conditions in the southern part of the country.
In contrast, the northern part of the country could experience colder and wetter conditions.
El Niño can also lead to more extreme weather events, such as storms and flooding.
It is important for individuals and communities to prepare for the potential impact of an El Niño winter.