The Fire's Out. Here's the Walkthrough Most Homeowners Skip.
Everyone in a wildfire-risk zone knows the feeling of relief when the smoke column lays down, the wind drops, and the news says the fire's been held at the ridge. What a lot of homeowners don't know is that "the fire's out" and "you're done" aren't the same statement — and the gap between them is exactly where a second, quieter problem can start. After the 2018 Woolsey Fire burned through the hills near my home in West Hills, and after going through CERT training in the years since, I learned that the hours and days right after a fire passes near your property deserve their own checklist. Most homeowners don't have one. Here's the one I'd want every fire-zone homeowner to run.
Why "The Fire's Out" Doesn't Always Mean It's Over
Fire investigators have a name for this exact gap: a holdover fire, sometimes called a sleeper fire. It's underground or deeply buried combustion — in root systems, mulch, duff, or debris — that keeps smoldering after visible flames are gone, with no smoke or heat signature obvious enough to catch on a walk-by. The Los Angeles Fire Department has pointed to this mechanism publicly: officials noted that holdover fires can reignite 10 to 20 days after they appeared to be fully contained, and the Palisades-area Lachman Fire investigation is a documented example of a fire that reactivated roughly six days after it seemed out. That's not a reason to panic every time a Red Flag Warning lifts — it's a reason to actually walk your property instead of just exhaling and going back inside.
To be clear about scope: this isn't about every windy day that passed without incident. It's specifically for when a fire burned near your property, embers rained down on your lot, or you had heavy ash fallout — the situations where something could genuinely still be smoldering somewhere you can't see it from the porch.
The Walkthrough: What to Check Before You Stand Down
- Walk the full perimeter, slowly, looking for smoke, warm spots, or discoloration — mulch beds, wood piles, compost, under decks, and anywhere debris has collected. These are the same spots Zone 0's low-combustibility rules target for a reason: they're where an ember finds fuel and shelter at the same time.
- Check your roof valleys, gutters, and attic or crawl space vents for ash buildup or embers that could still be sitting in debris. This is also a good moment to confirm vent screens weren't damaged or knocked loose by wind or falling material.
- Inspect every piece of equipment you staged or used — hose for scorching, cuts, or kinks; gated valve seals; wrench; nozzle gaskets. If you used a fire blanket to smother embers or a small flare-up, it's single-use — plan to replace it, not refold it.
- Photograph your property now, even if you see no damage — timestamped, from multiple angles, inside and out. If a claim ever needs to be filed, "here's what it looked like the day after" is worth far more than a memory of how things looked before.
- Recheck your defensible space and Zone 0 area specifically. Wind and fire activity both scatter debris, and it's common for leaves, branches, or ash to land right back in the zone you'd already cleared. A five-minute recheck beats finding out the hard way next time.
- Recharge, refuel, and restock — phones, radios, flashlights, and fuel for any pump you used. Equipment you don't reset is equipment that's half-ready for the next event.
- Debrief as a household while it's fresh: what worked, what took too long, what you'd stage differently. Update your plan while you remember the details, not six months later.
What You Need to Know
- Holdover fires are a documented phenomenon, not a scare tactic — LAFD has described reignition windows of 10 to 20 days after a fire appeared contained, which is why a property that "looked fine" the day after can still be worth a second and third look.
- This checklist is for proximity exposure — a fire that burned near you, heavy ember fallout, or active ash on your property — not a reason to treat every calm-after-wind day as an emergency.
- Follow your fire department's official "all clear" before re-entering an evacuated area, and check your specific jurisdiction's guidance — procedures vary by county and fire agency.
- This supplements official guidance, it doesn't replace it. If authorities haven't cleared your area yet, or tell you to stay out, that instruction overrides anything on this list.
- Inspect and practice with your equipment on a calm day, not just after an event — knowing what "normal" looks like is the only way to quickly spot what isn't.
The adrenaline part of a wildfire event gets all the attention. The quieter part — the walkthrough nobody films — is where a lot of near-misses either stay near-misses or turn into round two. If your hose, valve, or wrench took a hit during this season's events, it's worth resupplying before the next Red Flag Warning, not during it.
Sherwin Ross is the founder of Ace Fire Defense, based in West Hills, CA. After the 2018 Woolsey Fire, he became CERT-trained and started building wildfire defense equipment for homeowners.