Environment Canada has issued wind warnings for Metro Vancouver and much of Vancouver Island as a storm system is expected to ravage British Columbia’s south coast.

The weather bureau is forecasting winds of up to 90 km/h for coastal areas of eastern and southern Vancouver Island, as well as parts of Metro Vancouver south of the Fraser River.

The wind warning is expected to remain in effect overnight and into Saturday morning.

Environment Canada warns that power outages and downed trees are possible due to gusty winds.

The strongest winds are expected to begin around midnight and end early Saturday morning.

“A frontal system will move across the south coast tonight (and) bring a period of brief but strong gusty winds to the area,” the warning said. “Metro Vancouver is expected to experience the strongest winds in areas near Boundary Bay.”

A special weather statement is also in effect for the Sunshine Coast and parts of coastal British Columbia north of Howe Sound, where winds are expected to reach 80 km/h around midnight and ease early Saturday morning.

“The strongest winds are expected near the Strait of Georgia,” the special weather release said.

The storm follows last weekend’s atmospheric river, which triggered localized flooding and mudslides that killed at least three people.