Preparing Your Home for Santa Ana Wind Season: Security and Power Outage Tips

Key Points:

• Santa Ana wind season brings hot, dry gusts that fuel wildfire spread, damage power infrastructure, and put Southern California homes at risk each year between September and May. 
• The biggest risk to your home during this season may not be the wind itself, but the security gaps it creates due to damaged fencing, powered-down alarm systems, and evacuated properties.
• By taking a proactive approach to Santa Ana wind season preparedness, you can reduce the risk to your property and protect your peace of mind.

Every year, Southern California is battered by hot, dry winds as air pressure builds over the Great Basin and then sweeps westward to the coast. Known as the Santa Ana winds, powerful gusts routinely reach 40–50 mph, with some events, like the one that helped spread the deadly Palisades fire of 2025, producing wind speeds near 100 mph.

 

Santa Ana wind season runs from September through May, peaking in the mid-winter between December and January. Though the Santa Anas arrive every year, many Southern California homeowners find themselves inadequately prepared. Severe winds increase the risk of wildfire spread, downed power lines, and structural damage, which leaves countless homes vulnerable to opportunistic property crime during outages and evacuations. 

 

In this guide, we’ll explore the home security risks associated with Santa Ana wind season. You’ll learn how to prepare your home for severe weather and why taking a proactive approach to home security is the best way to protect both your family and property. 

How Santa Ana Winds Put Homes at Risk

Santa Ana winds are uniquely hard on homes. Sustained gusts (sometimes lasting as long as 5–7 days) contribute to a series of compounding hazards, ranging from downed power lines to wildfires, that can put your property in harm’s way. 

 

Let’s take a closer look at some of the distinct risks homeowners in Los Angeles, Thousand Oaks, Santa Clarita, and other SoCal communities face during Santa Ana wind season.

Wildfire Ignition and Spread

The Santa Anas flow over the deserts of the Southwestern U.S. to produce hot and arid conditions along the California coast. Low humidity combined with high winds creates a recipe for wildfires, with wind-driven embers traveling quickly, putting homes miles away from the fire line at risk. A single ember landing on your roof or lodging in the brush along your property line could smolder and catch before you even know it’s there.

 

In January 2025, electricity arcing on a damaged Edison transmission line in Eaton Canyon showered hot metal fragments onto the dry vegetation below. The vegetation caught, sparking a blaze that killed 19 people and destroyed over 9,000 homes. At the same time, an out-of-control fire was also raging through Pacific Palisades, propelled by the Santa Ana winds with gusts exceeding 65 miles per hour.

Downed Trees, Fences, and Power Lines

During wind season, sustained gusts can break branches or uproot entire trees, sending them crashing down onto homes, fences, and power lines. Lucky homeowners are left with a few days’ worth of storm cleanup, while others face significant property damage, some of which can leave the home vulnerable to intrusion (such as broken gates and fences). 

 

Most burglaries are crimes of opportunity. Thieves want to get in and out as quickly as possible, which becomes much easier when a fallen branch damages an otherwise impenetrable fence. Or a power outage renders a home security system inoperable.

Public Safety Power Shutoffs 

In periods of severe weather, utility companies in Southern California may preemptively cut power to affected areas. The purpose of these Public Safety Power Shutoffs (PSPS) is to reduce the risk of fire caused by damage to the electric utility infrastructure. 

 

According to the California Public Utilities Commission (CPUC), roughly half of the most destructive wildfires in the state’s history have been attributed to electrical infrastructure. PSPS events may help reduce related wildfire risks, but they also leave homeowners in the dark, sometimes for days at a time. 

Opportunity for Break-Ins

Storm damage, power outages, and evacuation orders can leave your home vulnerable to intrusion. If you have a smart home security system but it’s not equipped with battery backup, for example, it could be rendered useless by a downed power line or Public Safety Power Shutoff (PSPS) event. Some WiFi-limited systems may also lose functionality during a severe weather event (this is where cellular backup comes in handy).

 

Even with a fully powered security system, a home left vacant due to evacuation orders could become a target for opportunistic crime. And if high winds cause significant damage to your home’s fencing or entry points, an intruder could walk right in.

How to Prepare Your Home for High Winds 

You may not be able to predict exactly when the Santa Anas will strike (or how hard the wind will blow), but you can be sure they’re coming. Taking some simple precautions now to shore up your home’s security can make a big difference once Santa Ana wind season sets in. 

Plan for Power Outages

Alarm systems equipped with backup batteries are designed to keep operating during power outages. Under normal circumstances, when the system is running on standard power, it continuously charges the backup battery. In the event of an outage, the system automatically switches to battery power so any sensors, sirens, and touchpads remain functional. 

 

Depending on system load and battery capacity, alarm systems can generally run on battery backup for 8 to 24 hours. Routine maintenance is crucial to optimize the function of your home security system and the lifespan of your battery backup.  

Update Your Emergency Contact List

An emergency contact list should include the names and phone numbers for everyone in your household, as well as information for next of kin (such as parents or adult children). Include backup contacts, such as close friends or neighbors who can reach the house quickly in an emergency, and any out-of-town contacts you may rely on in the event of an evacuation. 

 

Review your emergency contacts annually. Verify that the phone numbers are correct and remove any outdated contacts. Don’t forget to update this information with your alarm monitoring company to ensure they can quickly reach the right people during an emergency.

Prevent Wind-Related False Alarms

Strong winds can trigger false alarms by shaking loose doors or windows and shifting unsecured objects. For example, a rattling window frame could trick a vibration sensor into thinking an intruder is trying to force entry. Or a patio chair blowing across the lawn might trigger a perimeter sensor to sound the alarm.

 

False alarms can lead to unnecessary dispatches and create delays as monitoring personnel work to verify the threat. Before wind season arrives, perform routine maintenance on your system to ensure all the sensors (and the surfaces they’re attached to) are secure. 

Monitor Conditions and Enable Notifications

When the Santa Anas are blowing, conditions can change quickly. Fortunately, there are plenty of resources to help keep Southern California homeowners informed. The Watch Duty app provides real-time tracking, mapping, and notifications for wildfires and major floods. There’s also the Santa Ana Wildfire Threat Index, if you want to assess how windy conditions might affect the wildfire risk in your area. 

 

Once wind season kicks into high gear, pay attention to local forecasts and watch for red flag warnings from the National Weather Service (NWS). Sign up for emergency alerts and evacuation notices through your county, or register for community-specific warnings through a service like NotifyLA. For information about power outages and PSPS notices, check the Southern California Edison (SCE) website or look on your county website.

Seasonal Home Security Checklist

Performing a home security check every fall helps ensure you’re ready to face whatever challenges the upcoming Santa Ana wind season may bring. In addition to identifying potential storm hazards and taking the necessary steps to mitigate them, it’s the perfect time to shore up your home security system.

 

Here’s a practical home security checklist for Southern California homeowners to follow in preparation for winter storm season:  

 

• Test your alarm system. Place your home security system in test mode before arming it, then purposely trigger each entry sensor and motion detector. Check the event history in your monitoring app to make sure every test signal was registered.
• Replace backup batteries. Disconnect your alarm system from the main power to ensure it automatically switches to backup power. Test and replace backup batteries, if needed.
• Verify camera views remain unobstructed. Open your home security app and toggle through every security camera to ensure the view isn’t obstructed by foliage or furnishings.
• Secure outdoor furniture and decor. Tie down or stow anything that could blow away when the wind picks up. 
• Charge your devices. Get in the habit of keeping your mobile devices charged in case of emergency and keep a few fully charged power banks handy. 
• Trim vegetation to reduce the risk of storm damage. Prune foliage near security cameras or perimeter sensors, and remove any weak or damaged branches that overhang the roof or power lines on your property.
• Review your evacuation plan. Make sure everyone in your household understands the evacuation plan and ensure any emergency supplies are readily accessible. Include a copy of your evacuation plan and emergency contacts list in your emergency kit.
• Double-check details with your monitoring company. Update your emergency contacts if needed, and ensure all the information the company has is up to date.

Santa Ana winds come with significant challenges for homeowners, but you’ll quickly learn what to expect and what steps you can take ahead of time to prepare yourself and your property.

How Proactive Home Security Keeps Your Home Protected

Learning the risks of the Southern California wind season is a great place to start when building a better home security plan, but knowledge alone won’t protect your property. Serving homeowners in Malibu, Pasadena, Santa Monica, and the greater Los Angeles area, Post Alarm combines more than 70 years of professional expertise with advanced security technology to provide proactive home security solutions.

 

We’re a third-generation business, proud to serve our community as one of the only full-service security organizations in Southern California. In addition to smart home security systems equipped with battery and cellular backup, we offer 24/7 professional monitoring and roving patrol services. Whether it comes from a fire alarm, entry sensor, or wireless perimeter camera, our professionally trained monitoring staff is ready to respond the instant an alert is triggered. 

 

With mobile app alerts, you can personally check in on your property from anywhere during an emergency or evacuation. Plus, we’re adding new power outage SMS notifications to our enhanced suite of services. By specifying your preferred response to power outages, you can enjoy additional peace of mind when away from home.

 

Ready to take your home security to the next level in preparation for Santa Ana wind season? Get in touch with our professionals for a free quote on a custom home security plan!

FAQs

When does Santa Ana wind season start and end? 

Southern California wind season typically begins in late September or early October and ends in April or May. Santa Ana wind activity peaks in December and January, during which individual wind events last anywhere from one to seven days (averaging about three days in length). 

How long do Public Safety Power Shutoffs usually last in Southern California? 

PSPS outages usually last between one and three days, though severe events can stretch up to a week. The duration of any given outage depends on weather conditions and how long it takes utility crews to inspect lines once it’s safe to do so.

Will my home security system still work during a power outage? 

Home security systems equipped with backup batteries will continue to operate during a power outage. If your home security system runs on traditional power and Wi-Fi, however, it will likely go offline if the power goes out. 

What should I do with my home security system before evacuating during a wildfire?

Before leaving home, make sure your security system is armed and that any backup power is active. Enable mobile alerts on your smartphone or tablet as well, so you can monitor the property remotely. As you leave, double-check all smart locks and gates to ensure that they’re closed and secured.