B.C. Hydro crews are working today to restoring power to more than 30,000 Lower Mainland residents were left in the dark Friday night.

A windstorm knocked out power to large sections of Surrey, Burnaby, Coquitlam, and Langley.

Environment Canada had issued a wind warning for Metro Vancouver, predicting gusts of up to 90 kilometres per hour, but gusts topped out around 40 to 50 kilometres. That warning has now been lifted.

The storms were not nearly as severe as the westerly winds that ravaged Vancouver's Stanley Park two years ago, knocking down hundreds of trees and causing extensive damage to the seawall that runs the perimeter of the park.

Ready for the worst

In preparation for Friday's wind storms, park crews went in and "wind firmed" about 10 kilometres of new, exposed forest. The trees were pruned in a spiral, taking out every third branch -- which allows the wind to feather through the tree rather than slamming into the trunk.

The Director of Stanley Park District, Jim Lowden says it's important to have a solid forest edge to brace for storms like this.

"If you have weak trees in front line and haven't thinned them, the ones behind them will start to go too."

Since the 2006 storm about a quarter of the shredded trees and felled trunks still haven't been removed, which park officials say is all part of regenerating the forest.

With a report from CTV British Columbia's Leah Hendry