Lightning strikes caused two power failures Friday afternoon in Wauwatosa during a freak rainstorm, leaving about 600 customers without electricity, a We Energies spokesman said.
About 400 homes and businesses were affected in an area from West North Avenue south and from about North 82nd Street west for several blocks, the utility's Brian Manthey said.
The other outage, affecting about 200 users, was centered in the Washington Highlands.
Power was restored to all neighborhoods by the end of the day, according to the We Energies outage map.
Lightning caused multiple outages in the region, Manthey said, mostly in Milwaukee County.
"It seemed to just develop suddenly right over us," he said.
Manthey said that about 4,800 customers in the area remained without power.