Wildfire on Vancouver Island grows aggressively, knocking out power for hundreds

Power out for about 500 B.C. Hydro customers near Port Alberni since Monday evening

A new wildfire has grown out of control on Vancouver Island, near Port Alberni, B.C., growing to 859 hectares in size Tuesday morning.

About 300 people have been evacuated from a nearby campground and marina, and the fire has knocked out power for more than 500 B.C. Hydro customers southwest of the blaze, according to the utility's outage list.

DON'T MISS: Get the latest wildfire news and safety tips to help you stay safe

The Mount Underwood wildfire is located about 12 kilometres south of Port Alberni, a city of around 19,000 people about 60 kilometres northwest of Nanaimo.

The fire was discovered Monday and grew quickly throughout the day, ballooning from around 50 hectares at 7 p.m. PT to 630 hectares three hours later.

"It grew massive," said Huu-ay-aht First Nations Chief Councillor John Jack, chair for the Alberni-Clayoquot Regional District, speaking on CBC's On The Island Tuesday morning.

He noted the fire has grown larger than the nearby Wesley Ridge fire was at its height.

Content continues below
Mount Underwood wildfire near the China Creek Campground and Marina on Vancouver Island - BC Wildfire Service

The Mount Underwood wildfire near the China Creek Campground and Marina on Vancouver Island is seen on Aug. 11, 2025. It prompted the closure of a nearby road connecting Port Alberni and Bamfield. (B.C. Wildfire Service)

The road between Bamfield, an unincorporated community with about 300 year-round residents, and Port Alberni is closed in both directions due to the wildfire, according to DriveBC.

Jack said people are advised to use the Cowichan route if they need to get to the Bamfield area.

He said residents of Bamfield and Anacla, a Huu-ay-aht First Nations community, are resilient and used to restricted access.

"Being cut off from the Port Alberni area is always a bit of a concerning situation for them, but they're no strangers to using gravel roads to get to where they need to go," Jack said.

"That being said, the power is out — and it's out indefinitely. And that's perhaps the most concerning thing."

Content continues below

In a 7:15 a.m. update Tuesday, B.C. Hydro said a crew had been assigned to the outage, but no time was given for when the power may return. It's been down since about 6 p.m. Monday.

Mount Underwood wildfire near Port Alberni, B.C - Tseshaht First Nation - Facebook

The Mount Underwood wildfire near Port Alberni, B.C., is seen on Aug. 11, 2025. (Tseshaht First Nation/Facebook)

Jack said there are no threats to Port Alberni at this time.

"That's a good thing, and the work will continue. But smoke is going to be an issue."

Jack recommended residents be prepared by making a "72-hour kit," having a plan for staying in place, and monitoring verified information sources.

WATCH BELOW: Why not use ocean water to fight wildfires?

SEE ALSO: 2025 is Canada's second-worst wildfire season on record for area burned

Conifryd Creek wildfire - Aug. 11 - BC Wildfire Service

The Conifryd Creek wildfire northwest of Osoyoos, B.C., is seen on Aug. 11, 2025. It is not expected to grow beyond current boundaries. (B.C. Wildfire Service)

Content continues below

On Monday, the B.C. Wildfire Service (BCWS) said the blaze was displaying Rank 4 and Rank 5 fire behaviour — meaning it was an extremely vigorous surface fire and burning to the tops of trees.

Night vision helicopters and structure protection specialists were on scene, according to the BCWS.

The cause of the fire is under investigation.

The Mount Underwood fire grows just after the Wesley Ridge fire, burning northwest of Nanaimo, was downgraded from "out of control" to "being held."

There are currently 97 active wildfires in B.C.

This article, written by Lauren Vanderdeen, was originally published for CBC News.

Thumbnail image courtesy: BC Wildfire Service via CBC

WATCH: 2025 is currently Canada's second-worst fire season on record