Power outages were reported Thursday morning in Enumclaw, Maple Valley and Covington, according to Puget Sound Energy.
About 1,000 customers are affected in Enumclaw and 2,800 in Maple Valley and Covington.
PSE estimates that power should return to most homes and businesses by 10:30 a.m.
They have not released what caused the outage.
Sign Up and Save
Get six months of free digital access to The News Tribune