Electricity has been restored to parts of a suburban Detroit hospital which lost power when problems were found in two underground cables.
The outages are scattered, however the biggest outages are in Madison Heights, Dearborn and near Lincoln Park.
As of Tuesday evening, DTE Energy had restored power to about 171,000 of the customers impacted by the high winds and lightning that hit southeast Michigan Sunday afternoon.
DTE Energy said about 1,000 customers remain without power early Thursday morning after more than 140,000 homes and businesses lost service.
Storms brought down about 800 power lines, and it could take crews until late Thursday night before all connections are restored.
About 58,000 homes and businesses are still without power; and trees are down across the region.
A second wave of thunderstorms moved across metro Detroit Wednesday, knocking out power to more than 50,000 homes and businesses.
Many travelers are missing their flights because of the outage. Several flights have also been delayed due to weather.
Multiple power lines were brought down by heavy winds. One home was hit by a fallen tree.
Scores of tree branches broke and fell from the weight of ice during the pre-Christmas storm, which knocked out power to roughly 650,000 homes and businesses.