Seattle City Light crews are working to restore power to about 5,300 customers in parts of Laurelhurst, Windermere, and Ravenna. The outage started at 11 p.m. and its cause is currently unknown. An early estimate for restoration, based on historical data, is 2 a.m. Monday, January 22. Customers can get updated outage information at www.seattle.gov/light/sysstat.