SAN FRANCISCO (KRON) -- A large, unplanned power outage was impacting thousands of customers in San Francisco's Mission District Thursday morning, according to Pacific Gas Electric. PGE's outage map initially indicated 2,725 customers were without power as a result of the outage. Enormous sea lion named Chonkers seen on San Francisco pier A subsequent update showed 638 customers without power. PGE said its team is evaluating the electrical system to identify damaged section and make necessary repairs. PGE estimates that power will be fully restored by 12:45 p.m. The San Francisco Department of Emergency Management is advising impacted residents to keep refrigerator doors closed to preserve perishables. ...read more read less