The potential flooding could significantly impact San Diego residents, with 3.5% of properties already identified as at risk. Areas like Sorrento Valley, Fashion Valley, Chollas, and the Tijuana River Valley are particularly vulnerable, but past events have shown that flooding can occur outside these zones. Damage to homes, businesses, and vehicles is a major concern, especially for those without adequate insurance coverage. Experts warn that 30% of flood claims occur in low-risk zones, underscoring the widespread nature of the threat.