Local, National Weather Service San Diego discontinued the Tropical Storm Watch early Sunday morning that was in effect for San Diego County and its coastal waters.
The government of Mexico discontinued the Tropical Storm Warning from Punta Eugenia northward to the U.S. Mexico Border, according to the National Weather Service.
The impacts from Post-Tropical Cyclone Rachel occurred in San Diego County this morning and could continue into early afternoon, according to NWS San Diego.
Though the Tropical Storm Watch has been cancelled, coastal flooding, wind and periods of heavy rain could lead to localized flooding, said the NWS San Diego.
The heaviest rain moved over the county overnight, bringing rainfall amounts to nearly 4 inches over Palomar Mountain and near 1.55” for Oceanside.
Rainfall totals for mountainous regions in San Diego County on Sunday, Oct. 11, 2026.
Rainfall totals for inland regions in San Diego County on Sunday, Oct. 11, 2026.
Rainfall totals for coastal regions in San Diego County on Sunday, Oct. 11, 2026.
Flash flooding will continue to be a concern on Sunday, according to NWS San Diego.
National Weather ServiceNational Weather Service
Widespread rain expected through Sunday, clearing out in the evening. Periods of moderate to locally heavy rain will continue, especially in the mountains and deserts. (National Weather Service)
The mountains and desert region have a wind advisory that will remain in place through 5 a.m. Monday. Winds could gust up to 60mph over these areas.
At their peak, winds reached 59 mph in eastern San Diego County, according to NWS San Diego
Beach areas are at risk to erosion, with high surf expected to peak around six to nine feet, said the NWS San Diego. A General Rain Advisory is in effect for all beaches and bays because of the rainfall, according to San Diego’s Department of Environmental Health and Quality.
The advisory said that water contact should be avoided during the rain and for 72 hours following it due to possible bacteria from urban runoff.
Harbor Beach, San Diego River Outlet Dog Beach and La Jolla Children’s Pool are advised that bacteria levels have exceeded state health standards and may cause illness.
The shoreline from International Border through Carnation Avenue in Imperial Beach remains closed until sampling confirms these areas are safe for water contact, according to the advisory.