California Insurance Commissioner Ricardo Lara used a September 22 news release to deliver a plain warning to homeowners and renters: flood damage is usually not covered by a standard policy, and a new flood policy generally does not begin protecting a property until 30 days after purchase. A household that waits for the first big storm to shop for coverage will likely be uninsured when it arrives.
The timing is deliberate. Federal forecasters say a very strong El Niño is building in the Pacific, and Governor Gavin Newsom has already proclaimed a statewide emergency to get ahead of the winter storm season. Every day of delay in buying a flood policy is a day added to a 30-day wait that starts only at purchase.
California’s Department of Insurance on the 30-day wait
According to the California Department of Insurance release, flood policies bought through the National Flood Insurance Program generally include a 30-day waiting period before coverage takes effect. The one exception the department named is flood coverage that a lender requires when a home is purchased, which is not subject to the same delay. The program itself is federal: the FloodSmart site identifies the National Flood Insurance Program as a FEMA program under the U.S. Department of Homeland Security, which is why the state department can only warn about the rule rather than change it.
Lara framed the release as a shared safety effort with the governor’s office. The commissioner said the shared goal is “keeping Californians safe, prepared, and protected before severe weather arrives,” and he urged residents to understand what their policies cover and to know their rights. The department also said it would support recovery if storms hit communities.
Why a standard policy will not help after a flood
The larger surprise for many households sits in the policy they already own. The department stated that standard homeowner, renter and commercial policies typically exclude flooding, mudslides and debris flows, unless the damage is caused by recent wildfires or other covered perils. Wind-driven rain damage may be covered under some policies, which makes the line between covered and uncovered water damage easy to misjudge until a claim is filed.
The practical message follows directly. A homeowner with a standard policy and no separate flood coverage has no insurance for water rising from the ground or sliding down a slope, and buying that coverage takes a month to become effective. The department’s list of other steps is short: review current policy details, check that auto comprehensive coverage would pay for storm damage, build a home inventory with photographs, and buy flood insurance well before storms arrive. Its consumer hotline is 800-927-4357, and the TTY line is 800-482-4833.
The two exclusions interact in an uncomfortable way. A policy that omits flood cannot be relied on when a slope gives way, and a policy that adds flood cannot be relied on until the waiting period has run. The lender-required exception applies only at a home purchase, so an existing owner has no comparable shortcut and must plan around the full 30 days. That is the reason the department pairs its warning with advice to buy flood coverage before storms arrive rather than with a list of what to do once rain begins.
The forecast behind the warning
The National Oceanic and Atmospheric Administration’s Climate Prediction Center put an El Niño Advisory in effect in its September 10 diagnostic discussion. Its central sentence reads: “El Niño is strengthening, with a greater than 90% chance of a very strong event during the Northern Hemisphere fall and winter 2026-27.” The discussion reported eastern equatorial Pacific sea surface temperature anomalies above +3.0°C and a Niño-3.4 index of +1.8°C.
Newsom’s office responded with a state of emergency proclamation that expedites procurement, stages sandbags, pumps and other flood-fighting equipment, positions Caltrans equipment along high-risk highways, readies the California National Guard for flood response and search and rescue, and fast-tracks environmental permits for protective work. Newsom said the state is preparing early because “every Californian deserves to be safe in their home.” The proclamation also expands multilingual public preparedness messaging, and the governor’s office asks residents to sign up for alerts, identify flood risks, keep evacuation plans ready and never drive through floodwater.
Coverage of the declaration by Time described expectations of heavier winter storms, landslides and flooding, and noted coastal erosion already seen in Malibu, Laguna Beach and Long Beach. Neither the insurance department nor the forecast puts a date on the first damaging storm. El Niño outlooks describe probabilities and seasonal tendencies, and the waiting period means the decision to buy has to be made before that date is known.
What the department has put on the record is the length of the delay, the exception for lender-required coverage, and the list of perils that a standard policy leaves out. Whether the 30 days proves decisive depends on when the first storm reaches California.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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