Heavy Rain Ahead: What SoCal Property Managers Should Prepare For
Southern California is expected to see multiple rounds of heavy rain this week as a series of atmospheric river storms move through the region, bringing an increased risk of flooding, strong winds, and power outages through Christmas and into the end of the week.
These conditions can disrupt building operations, impact tenant safety and access, and require rapid coordination with service providers during an already compressed holiday schedule.
What You Need to Know
Multiple storms are expected. Like one late Tuesday night into Christmas Eve, followed by another round of rain on Christmas Day and lingering showers into Friday.
Much of the L.A. Basin could see 3 inches or more of rain over the course of the week.
This heavy rainfall increases the risk of flash flooding, especially in low-lying areas, near storm drains, and in locations with poor drainage.
Hillside and canyon areas, including regions impacted by recent wildfires, face an elevated landslide and mudflow threat.
Be mindful of strong winds that could down trees and power lines, leading to outages—particularly where soil is already saturated.
How It Impacts You
For commercial real estate professionals, these storms can have real operational and financial consequences:
Building operations & maintenance: Flooded parking structures, roof leaks, clogged drains, and water intrusion can disrupt daily operations and require rapid response from engineering and janitorial teams.
Tenant safety & access: Weather-related hazards such as flooded walkways or temporary power interruptions can limit safe access to buildings, heightening the importance of timely tenant notifications and on-site precautions.
Vendor coordination: Property managers may need to proactively coordinate with landscapers, roofers, security teams, and emergency response vendors to address issues as they arise.
Business continuity planning: Properties should review emergency procedures, confirm backup power readiness, and ensure contact lists are current in case conditions worsen.
BOMA/GLA encourages members to stay alert, monitor local weather advisories, and take preventative steps to protect people, property, and operations during this active weather period.
