Severe winter storms bring heavy rainfall, high winds, flash flooding, and mountain snow to California, disrupting daily life and threatening infrastructure. Knowing how to prepare your home, respond during hazardous weather, and navigate recovery steps keeps you and your family safe.
Preparation starts long before a storm makes landfall. By clearing property hazards, building reliable emergency supply kits, and understanding real-time alert systems, you significantly reduce risks associated with power outages, road closures, and localized flooding.
Preparing Your Home Before the Storm
Mitigating property damage requires proactive maintenance during dry windows. Strong winds and heavy downpours test every vulnerable point of a residential structure.
- Clear drainage systems: Clean gutters, downspouts, and nearby storm drains to direct water away from your home's foundation. Blocked drains cause pooling that quickly leads to structural water intrusion.
- Inspect roofing and seals: Check for missing or damaged shingles, and replace degraded caulking around windows and doors. Proper flashing prevents moisture from penetrating gaps during wind-driven rain.
- Secure outdoor items: Patio furniture, potted plants, and trash bins become dangerous projectiles in high winds. Store them indoors or anchor them securely.
- Manage property slopes: Ensure landscaping slopes away from exterior walls. For properties prone to mudflows, sandbags placed strategically can divert runoff. Check local guidelines on where to obtain free sandbags from public works yards.
Building Essential Emergency Kits
Power failures and blocked roads often isolate households for days. Stocking the right supplies ahead of time guarantees self-sufficiency when municipal services go offline.
- Water storage: Store at least one gallon of water per person per day for a minimum of three days, intended for drinking and sanitation.
- Non-perishable food: Keep a three-day supply of canned goods, energy bars, and dried foods that require no refrigeration or cooking.
- Power and communication backups: Pack battery-powered or hand-crank radios, extra flashlights, portable device chargers, and extra batteries.
- Go-bag essentials: Include copies of important documents in a waterproof container, cash, prescription medications, first-aid supplies, and warm clothing.
Staying Safe During Active Severe Weather
When a storm hits, your immediate actions dictate your safety. Changing conditions require constant vigilance and adherence to official directives.
Navigating Power Outages and Safe Heating
Grid failures frequently accompany heavy winter winds. Operating alternative heating sources requires strict adherence to safety protocols to prevent carbon monoxide poisoning and fires.
- Never use indoor combustion for heat: Stoves, camp stoves, and charcoal grills must never be brought indoors. Their exhaust fumes are lethal.
- Operate generators outdoors: Place portable generators at least twenty feet away from windows, doors, and vents, pointed away from the house. Never run a generator in rain or wet conditions.
- Maintain space heater clearance: Keep portable electric heaters at least three feet away from drapes, furniture, and bedding. Plug them directly into wall outlets rather than extension cords.
Flood and Road Safety
Swiftly moving water poses an extreme, deceptive hazard. Most flood-related fatalities occur in vehicles.
- Turn around, don't drown: Never walk, swim, or drive through floodwaters. Just six inches of moving water can knock an adult down, and two feet can sweep a car away.
- Monitor transit conditions: Check Caltrans QuickMap before traveling to view real-time road closures, chain controls, and traffic updates. Avoid driving over mountain passes or through low visibility conditions unless completely necessary.
- Respect barricades: Never drive around physical road closure signs or cones placed by emergency responders.
Post-Storm Recovery and Assessment
Once the severe weather clears, recovery begins with cautious property evaluation and resource management.
- Inspect for structural damage: Check your home carefully for compromised plumbing, gas leaks, or electrical hazards before re-entering rooms with standing water. If you smell gas, leave immediately and report it.
- Document property impacts: Take clear photographs of any structural damage, fallen trees, or water intrusion before beginning cleanup. This documentation speeds up insurance claims and disaster assistance applications.
- Stay tuned to local updates: Use county emergency portals and services like Ready California to find community resource centers, localized assistance programs, and updated shelter locations.
Frequently Asked Questions
What should I do if floodwaters begin entering my home?
Move immediately to the highest level of the building, such as a second floor. Avoid climbing into a closed attic space where you could become trapped by rising water. Take your emergency kit, a whistle, and a phone, and signal for rescue.
How can I sign up for official local emergency alerts?
Visit CalAlerts.org or your specific county's emergency management website to register for direct SMS and email warnings regarding evacuations and severe weather shifts.
Is it safe to drink tap water immediately after a major storm?
Not always. Major storms can compromise municipal water treatment systems. Pay attention to local boiling advisories or public health announcements issued by your water district before consuming tap water.
What distinguishes an evacuation warning from an evacuation order?
An evacuation warning means potential threat to life or property, giving you time to prepare and leave early if vulnerable. An evacuation order mandates immediate departure because imminent danger threatens your area. Leave right away when an order is issued.
