A Super El Niño could bring a wetter-than-usual winter to Southern California, making this a great time for renters, property owners, and property managers to prepare.
El Niño is a natural climate pattern involving unusually warm waters in the tropical Pacific that can shift weather patterns and storm tracks. Historically, stronger El Niño events have increased the chances of above-average rainfall in Southern California. That doesn't mean every neighborhood will experience heavy rain or flooding, but it does mean being rain-ready is a smart move.
For residential properties, preparation now can help prevent a small maintenance issue from becoming a much bigger one when the rain arrives.
Tips for Renters
Before the rain: Take a quick look around your home. Check windows, doors, ceilings, patios, and balconies for signs of existing leaks or drainage issues, and report concerns to your property manager early. Make sure renter's insurance is current, protect important documents and valuables, and keep a basic emergency kit with flashlights, batteries, chargers, water, and other essentials.
If you live on a ground floor, near a hillside, or in an area that has experienced flooding in the past, pay extra attention to weather alerts and know where you would go if conditions became unsafe.
During the storm: If you notice an active leak, water intrusion, overflowing drain, fallen branch, or another property issue, notify management promptly. Move personal belongings away from affected areas when it's safe, take photos of any damage, and never enter standing water where electrical equipment or outlets could be involved.
Tips for Property Owners
Before the rain: Preventative maintenance is especially important in Southern California, where months of dry weather can allow leaves, dirt, and debris to accumulate in drainage systems.
Inspect roofs, flashing, windows, gutters, downspouts, exterior drains, grading, and other areas where water could enter or collect. Trim vulnerable trees and branches and address known leaks before the first major storm.
For hillside or sloped properties, pay extra attention to drainage and areas where water may collect or flow toward the building. Making sure water has a clear path away from the structure can help reduce the potential for erosion, pooling, and water intrusion.
This is also a good time to review insurance coverage and understand what is - and isn't - covered, particularly when it comes to flooding and water damage.
During and after a storm: Safety comes first. Document damage with photos and video, take reasonable steps to prevent additional damage when safe, and contact contractors and insurance providers promptly when needed.
Once the rain stops, don't assume everything is dry just because you can't see water. Check for lingering moisture around windows, ceilings, walls, flooring, garages, and other vulnerable areas.
Tips for Property Managers
Before the rain: Walk your properties with storm preparation in mind. Look for clogged drains and gutters, roof concerns, loose exterior items, tree hazards, vulnerable ground-floor units, and areas where water has pooled during previous storms.
Confirm your emergency vendor list - including roofing, plumbing, restoration, landscaping, and tree services - and make sure residents know how and where to report urgent maintenance issues.
For larger communities, identify the areas most likely to experience drainage problems ahead of time so your team knows where to look first when heavy rain begins.
In the moment: Communication is key. Keep residents informed, prioritize service requests based on safety and severity, document incidents carefully, and coordinate vendors efficiently.
During heavy rainfall, monitor known trouble spots such as drains, garages, low-lying areas, roofs, and hillsides - but never send employees, vendors, or residents into flooded or otherwise unsafe areas simply to assess damage.
A Little Preparation Goes a Long Way
Clear the drains. Check the roof. Trim the trees. Know who to call. Keep residents informed.
A Super El Niño doesn't guarantee that Southern California will experience flooding or property damage. What it does provide is a good reminder to prepare before the first big storm arrives.
Southern Californians may not be able to control the weather, but with a little preparation, renters, owners, and property managers can all be better prepared to weather the rain.
General informational guidance only. Property conditions, insurance coverage, and local weather risks vary.