San Diego Region Steps Up El Niño Preparation
San Diego officials are moving into emergency-preparedness mode ahead of what forecasters expect could be an unusually strong 2026–27 El Niño season.
The San Diego City Council voted Tuesday to ratify a local emergency declaration first issued by Mayor Todd Gloria. The action follows emergency declarations by the State of California and County of San Diego and is intended to give the city additional authority and flexibility to prepare for severe weather and seek state or federal assistance if needed.
Read the City of San Diego emergency announcement.
What officials are preparing for
The city says preparations include clearing and maintaining storm channels, reviewing evacuation routes, planning sandbag distribution, installing protective berms along beaches and Mission Bay, preparing debris-removal operations, training emergency responders and reviewing contracts for critical resources.
Officials say possible impacts include heavier rainfall, flooding, mudslides, strong surf, beach erosion, power outages, fallen trees and infrastructure damage.
Why this matters in Chula Vista and the South Bay
Although the City of San Diego’s emergency declaration applies within San Diego city limits, the underlying weather risks are regional. Chula Vista, National City, Imperial Beach and other South Bay communities share many of the same vulnerabilities involving drainage, low-lying roadways, power interruptions and coastal impacts.
The County of San Diego is separately urging residents and property owners to prepare for the rainy season. County guidance notes that NOAA is forecasting a greater than 90% chance of a very strong El Niño during fall and winter 2026–27, while also emphasizing that a strong El Niño does not guarantee above-average rainfall in every location.
See San Diego County storm-preparedness resources.
What residents can do now
- Clear privately maintained gutters, drains and drainage channels.
- Secure outdoor furniture and loose materials before storms.
- Know whether your property is in a flood-prone area.
- Keep basic emergency supplies and medications available.
- Plan for possible power outages.
- Avoid driving through flooded roads.
- Monitor official weather and emergency alerts rather than relying on social-media rumors.
The City of San Diego also maintains a dedicated El Niño preparedness page.
ChulaVista.com will track South Bay impacts
As the rainy season develops, ChulaVista.com will monitor Chula Vista-specific advisories, road closures, power outages, flood risks and emergency resources affecting South Bay residents.
Sources: City of San Diego, San Diego County storm-preparedness guidance and regional reporting. Updated October 7, 2026.
