The primary risks include coastal flooding, particularly along California's oceanic and bay coastlines, such as the San Francisco Bay Area and Monterey Bay. Highways 1 and 101 are expected to face significant challenges due to rising sea levels and storm surges. The eastern Pacific hurricane season may also intensify, adding to the potential for extreme weather. While El Niño typically brings wetter winters to Southern California, the distribution and intensity of rainfall remain uncertain. Residents in low-lying and flood-prone areas are advised to prepare for potential disruptions and hazards.