Flooding hits Vancouver Island as heavy rain threatens homes and roads

VICTORIA — Large areas of Vancouver Island in British Columbia are facing severe rain and flooding after a series of wet storms raised river and stream levels, with growing concern that homes and roads could suffer further damage.

The developments come as officials warn of exceptional rainfall that could exceed 250 mm in some areas, increasing the likelihood of localized flooding and landslides.

The crisis reflects the growing impact of back-to-back storms on coastal communities, particularly as the soil is saturated and accumulated rain is hard to drain.

Heavy rain threatens homes on Vancouver Island

Vancouver Island has seen successive waves of rain since the start of November, and conditions worsened with the arrival of a strong weather system on the province's west coast.

Environment and Climate Change Canada issued an orange warning for western and inland parts of the island, forecasting 150 to 200 mm of rain, with more than 250 mm possible locally.

The agency said rainfall intensity could reach 10 to 15 mm per hour, raising the risk of water pooling quickly in low-lying areas.

It also warned that some roads could become impassable, especially near rivers, creeks and areas prone to washouts.

Warnings of rising river levels

The BC River Forecast Centre said flood watches remain in effect for the north, west, east and central parts of Vancouver Island.

A flood watch means water levels are rising and may approach or exceed riverbanks, increasing the chance of adjacent land being inundated.

The warnings also covered other parts of the province, including the central coast and the mountain areas north of the Fraser Valley.

On Nov. 11, the centre raised the alert level to a flood warning for the Kingcome River, while continuing to monitor conditions in other coastal areas.

Authorities urged residents to stay away from unstable riverbanks and to avoid fast-moving water, however shallow it may appear.

Risk of landslides and road closures

The concern is not limited to rising water. Authorities warned of possible landslides on steep slopes and in areas previously affected by wildfires or tree removal.

Continuous rain can weaken soil stability, especially when water seeps into deeper layers and adds pressure on slopes.

Flooding can also wash out sections of road and disrupt traffic, at a time when emergency crews need quick access to affected areas.

Authorities stressed that drivers should not cross flooded roads, because the force of the current can make crossing dangerous even for large vehicles.

Successive storms hit British Columbia

The earlier bout of bad weather caused widespread power outages, with BC Hydro reporting about 40,000 customers without service on the morning of Saturday, Nov. 7.

Port Hardy, Courtenay and Qualicum were among the areas hardest hit by outages, along with other communities in the province.

The weather agency said the current rain is linked to what are known as atmospheric rivers, which are streams that carry large amounts of water vapour through the atmosphere and can cause intense rainfall when they reach land.

The agency expects the rain to ease gradually overnight, with some rainfall continuing Thursday, before a new weather system approaches on Friday.

Urgent instructions for residents of affected areas

Authorities urged Vancouver Island residents to follow weather warnings and local emergency updates, and to be ready for conditions to change quickly.

They also stressed avoiding rivers, creeks and culverts, and staying away from the edges of waterways that could collapse because of saturated soil.

Residents in low-lying areas are advised to protect their property and to follow authorities' instructions on evacuation if official orders are issued.

With rain continuing, concern remains about the ability of drainage systems and roads to cope with the additional volume, particularly in communities affected by earlier storms.