San Diego County Records Heavy Rainfall as Post-Tropical Storm Rachel Lingers

Key points

• Palomar CRS recorded the highest 3-day rainfall at 6.20 inches, followed by Birch Hill at 6.03 inches.
• Coastal areas like Oceanside and Carlsbad received approximately 1.9 inches of rain, while inland valleys saw 2.5 to 3.5 inches.
• The National Weather Service predicts 0.10 to 0.75 inches of additional rain through Monday night, with heavier amounts in mountainous regions.
• Scattered showers continue to pass through the county as the unsettled weather pattern persists behind Rachel's remnants.
• High surf and coastal flood warnings remain in effect for San Diego County.

Background

This event follows earlier forecasts on October 9, 2026, which predicted up to one inch of rain and coastal flooding from Tropical Storm Rachel. The storm, which reached Category 2 status in late September, has since weakened but continues to impact the region. Recent archive coverage also noted power outages and heat-related issues in early October, highlighting the region's volatile weather patterns.

How outlets are covering it

NBC 7 San Diego emphasizes the detailed rainfall totals across San Diego County, highlighting the disparity between coastal and mountainous areas. The New York Times focuses on the broader impact of Post-Tropical Storm Rachel, particularly the wave damage and evacuations in Long Beach, California. The Los Angeles Times provides a deeper analysis of the cumulative damage from three recent storms, including Hurricane Marie and Hurricane Polo, and discusses Long Beach's climate resilience efforts. While NBC 7 focuses on local rainfall data, the New York Times and Los Angeles Times highlight the broader regional and long-term implications of the storm.

Why it matters

The heavy rainfall and ongoing high surf pose risks of flooding and coastal erosion in San Diego County. The disparity in rainfall totals between coastal and mountainous areas could lead to localized flooding and landslides. Additionally, the cumulative damage from recent storms underscores the need for long-term climate resilience planning in coastal communities.

What to watch

The National Weather Service forecasts additional rain through Monday night, with 0.10 to 0.75 inches expected in various parts of San Diego County. High surf and coastal flood warnings will remain in effect, and residents are advised to monitor local conditions and avoid coastal areas. Long-term repairs and climate resilience projects in affected areas, such as Long Beach, are expected to continue in the coming weeks.