PITTSBURGH — A Western Pennsylvania lawmaker frustrated with continuing power outages from last weekend's snowstorm called for an investigation into the emergency response to the wintry weather.

State Rep. Peter Daley, D-Washington, said Friday he plans to call a hearing to get answers about how some residents of southwestern Pennsylvania could go without power for more than a week.

"I'm trying to see exactly what happened, why we have so many people without power," he said. "It just doesn't make sense. It seems like Western Pennsylvania is left out in the cold here."

The storm that knocked out power across the region arrived last Friday evening. Allegheny Power reported more than 12,000 customers still without power seven days later.

Officials with Allegheny Power didn't immediately return a call for comment Friday.

Daley said he has received calls from angry residents and wants to get to the bottom of what went wrong. Without power, stranded residents also couldn't get information about warming centers that were opened to provide relief to those without electrical service, Daley said.

"We're not on a witch hunt," he said. "We just want to get answers for the next time around."

Meanwhile, much of the rest of the state was still digging out from the one-two snowstorm punch. Schools from Philadelphia to Pittsburgh were still closed down two days after the second big storm rolled across the state.

About 7,000 Peco customers in southeastern Pennsylvania were without power at 5 p.m. Friday, said spokeswoman Karen Geus. Crews were coming from as far away as Michigan to help the utility restore power, she said.

In Philadelphia, where more than 40 inches of snow fell in less than a week, businesses began to reopen. Major roads were clear but neighborhood streets were still hazardous or snow-covered.

The latest storm set records up and down the Atlantic coast. Philadelphia set a record for snowiest season with 70.3 inches of snow.