California Just Declared a State of Emergency Over El Niño. Here's What San Diego Homeowners Should Do.

California isn't waiting for the first storm. On Monday, September 21, Governor Newsom proclaimed a state of emergency to prepare the state for what forecasters say could be the strongest El Niño in the modern record. Not in response to a disaster — ahead of one that hasn't happened yet. The state is pre-positioning sandbags, pumps, and flood-fighting equipment along highways, mobilizing the National Guard for flood response and search-and-rescue, and fast-tracking permits for flood-protection work before the 2026–27 wet season arrives.

When we started covering this El Niño back in July, the story was a NOAA advisory and some probabilities. It's now a statewide emergency declaration. That escalation tells you how seriously the people whose job is disaster readiness are taking this winter.

The Forecast Behind the Declaration

The declaration didn't come out of nowhere. NOAA's Climate Prediction Center released its September update on September 10, and once again every number moved the wrong direction — or the right one, if you're a fan of dramatic weather:

• The odds of a "historic" event rose again. NOAA now gives a 75 percent chance that this El Niño exceeds the strength of every event since reliable records began in 1950. In August that figure was 69 percent; in July, "historic" wasn't in the conversation at all.
• The ocean keeps warming. The key Niño-3.4 monitoring region hit +1.8°C above normal, up from +1.4°C in August and +1.2°C in July.
• "Very strong" is all but locked in at greater than 90 percent for this fall and winter, with the event expected to persist into spring 2027.

For San Diego specifically, state water officials are flagging heightened storm activity and large waves in November and December that could bring coastal erosion and flooding when storms line up with high tides. San Diego Mayor Todd Gloria urged residents to "take steps now to prepare their homes and families for severe weather."

What a Preparedness Emergency Means for You

Here's the thing about a preparedness declaration: the entire point is that the smart moves happen before the rain. The state is spending September and October staging sandbags so it isn't scrambling in January. The same logic applies, roof-sized, to your house.

San Diego averages about ten inches of rain a year. The benchmark strong El Niños — 1997–98 and 1982–83 — delivered 20.89 and 18.49 inches. NOAA is saying this event has better-than-two-in-three odds of being stronger than either. And as we covered when the "historic" language first appeared, El Niño rain arrives as storm after storm, soaking roofs that never fully dry out between systems. Small flaws that survive one shower fail under the fourth soaking in two weeks.

The usual caveat still applies — El Niño is about odds, not guarantees, and nobody can promise you a wet winter. But when NOAA says 75 percent historic and the Governor declares an emergency to prepare for it, "wait and see" stops being a strategy.

Your Move This Week

We've put everything a San Diego homeowner needs into one place: our new El Niño Roof Prep guide covers the full forecast, what past El Niño winters did to San Diego roofs, a step-by-step prep checklist, county sandbag and alert resources, and how insurance fits in. If you read one thing before the rain, make it that.

The short version:

1. Get your roof inspected now, while the weather is dry and calendars still have room. Inspection demand spikes every time El Niño makes the evening news — and a statewide emergency declaration is a lot of evening news.
2. Fix the small stuff immediately — flashing, sealant, slipped tiles. Cheap in October, emergencies in January.
3. Clear your gutters and downspouts, and check them again after the trees drop.
4. Photograph your roof so you have dated proof of its condition if you ever need an insurance claim.

We're a family-owned San Diego roofer, licensed and insured (CSLB #247618), and we've been through every El Niño winter since 1967. Request a free inspection or call (619) 501-2138 — we'd much rather see your roof this month than during the storm the state just spent a news cycle warning you about.