El Niño is a climate pattern that occurs every few years and can bring heavy rainfall to California.
The wet winter could begin next month and lead to flooding and mudslides in areas affected by wildfires.
California has experienced several devastating wildfires in recent years, which could exacerbate the effects of the wet winter.
The state is already preparing for potential flooding and mudslides by clearing debris basins and conducting emergency drills.
El Niño can also affect other parts of the world, including South America and Australia.
The last major El Niño event occurred in 2015-2016 and caused significant damage and disruption in California.
Experts are urging residents to prepare for the possibility of flooding and mudslides by creating emergency kits and staying informed about weather conditions.