Downed power lines mean the lights are out in several parts of the metro area. Ameren opened their Emergency Operations Center just after p.m. Wednesday. Utility officials say crews will work through the night, but many residents will remain without power until at least Thursday afternoon. Ameren will bring in additional crews Thursday morning.
As of 2:00 a.m, Ameren was reporting more than 30,000 Missouri customers without power - most of them in St. Louis County.
About 4,000 metro-east customers also remain in the dark.
Outages can be reported here.