Hurricane Polo poses significant risks to California's coastal communities, particularly Long Beach and Newport Beach, which are still recovering from Hurricane Marie. Potential impacts include coastal flooding, property damage, and infrastructure risks due to high surf and strong winds. Residents and businesses near the shoreline are at heightened risk, with some areas already deploying sandbags and reinforcing berms to prevent flooding. Officials warn of possible downed power lines, fallen trees, and life safety issues if the storm's effects intensify.