A warm storm moving through British Columbia this weekend is heightening avalanche risks during a period that historically sees the highest number of avalanche fatalities in Canada. Environment and Climate Change Canada predicts that the system will bring precipitation, strong winds, and rising freezing levels across most of the province. Meteorologist Brian Proctor explains that the increased snowfall at higher elevations over the weekend will elevate avalanche danger, particularly in parts of the South Coast such as the North Shore Mountains where freezing levels are expected to surpass 1,500 to 1,800 meters.
The combination of rain falling on existing snow in mountainous regions can escalate avalanche risk as per forecasters. Karina Bakker from Avalanche Canada emphasizes that storms introducing new snow or rain on top of existing snow can create pressure on layers, potentially causing collapses or slides. The current risk primarily arises from “persistent slab” conditions, where a layer of snow sits atop weaker snow buried deep within the snowpack, making avalanches harder to predict due to the absence of typical warning signs.
March historically records the highest avalanche fatalities in Canada, with 69 deaths over the past two decades. Bakker notes that March poses increased danger due to the evolution of the snowpack throughout the winter, with multiple complex layers forming as the season progresses. In British Columbia, five avalanche-related deaths have occurred since December 2025, underscoring the need for caution in backcountry activities. Avalanche Canada advises individuals to stay updated on daily forecasts, opt for conservative terrain choices, and exercise patience, especially under considerable avalanche danger ratings, suggesting slopes under 30 degrees and avoiding avalanche-prone areas during high-risk conditions.