Gov. Rick Snyder says that at one point close to a third of Michigan had no access to electricity after high winds knocked out power this week to more than a million utility customers.
Snyder surveyed damage Friday in a Dearborn Heights neighborhood, west of Detroit.
DTE Energy says about 515,000 customers were still without power after Wednesday's storm. Consumers Energy says about 94,000 of its customers remained without power Friday afternoon.
The utilities say power should be restored to nearly all by Sunday.
Snyder called the storm "unprecedented in terms of the number of power lines, poles broken."
Dozens of warming centers are open across Michigan. Temperatures were around 30 degrees Friday morning in the Detroit area and expected to remain cold throughout the weekend.
