Line crews continued working to restore power to thousands of Central Maine Power Co. customers Saturday following an early spring snowstorm Thursday that knocked out power to some 350,000.

By Saturday afternoon, power had been restored to more than 270,000 customers, according to CMP spokesman Jonathan Breed, who said in a news release that those still without power had been given estimated restoration times.

“More than 1,100 crews have restored power to more than 270,000 customers over the past two days, but we still have a lot of work to do,” Breed said. “The long duration of this storm disrupted lives all over our state, and we truly appreciate everyone’s patience as we work to restore power as quickly as we can.”

Southwest Maine, including York and parts of Oxford and Cumberland counties, bore the brunt of damage, Breed said.

“As the weather cleared on Thursday morning, our crews began ‘assessing’ damage. For this storm, that means getting eyes on more than 5,100 individual incidents of fallen trees and downed powerlines to determine how many poles are broken, trees need to be removed, transformers need to be replaced, wires need to be restrung, and what types of crews are needed to restore power.”

Breed said that could mean crews would physically drive every mile of a power line circuit in a community, and the assessing is critical so that crews respond to outages with the right repair equipment.

Estimated time of restoration is an estimate based on the assessment of damage and assignment of crews, according to Breed. They will be adjusted as crews work on impacted circuits and new information is available.

Generally, customers in the Augusta, greater Portland and eastern Cumberland County areas are expected to have power restored by Sunday or sooner, according to estimates.

By 1 p.m. Saturday, some 114,021 of 675,603 customers remained without power, according to CMP’s website.

“Restoration efforts continue in the wake of Thursday’s powerful storm, and 67% of impacted customers have had their power restored,” it said.

The storm dropped heavy snow and rain across central Maine, downing trees on transmission lines and causing messy roads.

The snow was melting Saturday as temperatures reached around 40 degrees in most places and the sun even poked through cloudy skies briefly in Waterville in the early afternoon.

By 1 p.m. Saturday, there were 1,673 of 74,479 customers in Kennebec County still without power while only three were reported without power in Somerset County to the north, according to CMP’s website.

Waldo County had 187 of 26,173 customers without power and in Knox County, 183 of 26,740 remained without.

In Androscoggin County, there 11,197 still without power by 1 p.m. Saturday; Cumberland County had 32,633; and York County had another 116,959 without electricity.