The storm caused widespread power outages, with up to 42,000 customers initially affected, primarily in South and West Seattle and Burien. Downed trees and power lines posed safety hazards, and the heavy rain led to localized flooding and ponding on roadways. Drivers were advised to exercise caution due to the potential for hazardous conditions caused by fallen leaves and rushing rainwater. The storm also disrupted daily activities for thousands of residents, with some still without power as of Sunday morning.