Spring break is arriving with a soggy start across much of Vancouver Island, as a prolonged atmospheric river is expected to drench parts of the region for several days.
Environment Canada has issued rainfall warnings for multiple areas of Vancouver Island, with the heaviest rain expected along the west coast and northern sections. While Greater Victoria will see steady rain over the coming days, significantly higher rainfall totals are forecast elsewhere.
On the west coast of Vancouver Island, forecasters are calling for storm totals between 100 and 150 millimetres of rain, with some areas potentially seeing close to 200 millimetres by Wednesday morning.
The system began moving into the BC coast Sunday and is expected to linger through midweek, bringing prolonged periods of heavy rain.
Meteorologists say the event could cause enhanced river flows and possible flooding, particularly as rising freezing levels trigger snowmelt in higher elevations.
“Prolonged heavy rain on snow combined with mountain snow melt will lead to very enhanced responses in river systems and the potential for flooding,” Environment Canada said in its warning.
Officials are also cautioning residents about water pooling on roads, potential washouts and an increased risk of landslides as the ground becomes saturated.
Inland and northern areas also at risk
Further inland on Vancouver Island, rainfall totals are expected to reach 80 to 120 millimetres before the system weakens on Wednesday morning.
The heaviest rain is expected Monday and Monday night, according to Environment Canada.
Meanwhile, northern Vancouver Island is also under weather warnings for both heavy rain and strong winds as the powerful system moves through.
Coastal areas in the north could see southeasterly winds of 70 to 90 km/h with gusts up to 110 km/h, particularly Sunday afternoon into early Monday morning.
The storm may lead to power outages, travel disruptions and minor property damage, including damage to roofs, fences and trees.
In Greater Victoria, the weather will be far less intense but still very wet.
Rain is expected to begin Sunday afternoon, followed by several consecutive days of showers and steady rainfall through at least Tuesday.
Forecasts call for roughly 10 to 15 millimetres of rain both Sunday night and Monday, with additional rain continuing into Tuesday.
Temperatures are expected to remain mild, with daytime highs between 10 and 12 C throughout the early part of the week.
Environment Canada is urging residents across Vancouver Island to remain cautious during the storm.
Drivers are advised to watch for pooling water, flooded roads and washouts near creeks, rivers and culverts. Landslides are also possible in vulnerable areas such as steep slopes or previously burned landscapes.
Officials also warn that fast-moving or rising water can sweep vehicles away and damage infrastructure.
The heavy rainfall is expected to gradually ease by Wednesday morning as the atmospheric river weakens and moves away from the coast.
