Southern California Braces for a Powerful El Niño
Heavy rain, flooding, mudslides and higher seas could affect the region in coming months.

Southern California officials are preparing for an unusually intense El Niño, a weather pattern linked to warm Pacific waters. The National Weather Service puts the odds above 90% that this season will be exceptionally strong. The region could see heavier rain, flooding, mudslides, higher ocean levels and shoreline wear. Impacts may begin with rising seas, while the timing and location of other hazards will vary.
Agencies are reinforcing flood protections, strengthening coastal barriers and adding crews and equipment. Residents are being urged to check whether their homes and regular routes face flooding, landslides, debris flows or coastal danger. California’s MyHazard tool can help identify risks around a property. Families can also map backup routes to work, school, hospitals and shelters, then create a contact plan that includes an out-of-state connection. Plans should cover neighbors or relatives who depend on powered medical devices, pets, and backup electricity. Generators must stay outdoors and away from the home because indoor use can create deadly carbon monoxide. Emergency alerts from reliable local and state sources can provide warnings and instructions.
Why it matters: Flooding, blocked roads, coastal hazards and outages could disrupt homes, commutes, evacuations and support for vulnerable household members.
- LAist