MAJOR STORM CYCLE ARRIVES
UP TO 75 CM OF NEW SNOW IS EXPECTED ACROSS THE INTERIOR MOUNTAINS THROUGH SATURDAY
KEY TAKEAWAYS
- March is historically the most dangerous month for avalanches in B.C.
- The snowpack remains complex, with storm and wind slabs over persistent weak layers
- A strong storm will bring widespread snowfall from Wednesday into Thursday night
- Interior mountains could see 20–75 cm of new snow through Saturday
- A warm atmospheric river next week could push snow levels sharply higher
- The snowpack remains complex, making conditions challenging to assess
AVALANCHE CONDITIONS
March is historically and statistically the most dangerous month for avalanches in B.C.
The snowpack remains complex, with recent storm and wind slabs sitting over deeper persistent weak layers. That combination means avalanches may propagate wider and run farther than riders expect, even around treeline and below treeline.
Avalanche Canada states that staying close to trees doesn’t always mean safer travel. Riders should steer clear of slopes with overhead hazards and steep alpine terrain, relying on terrain management rather than just the snowpack. Slopes often thought to be safer — like treed or gladed areas — can still have avalanches triggered in steep forest openings.
Anyone heading into the backcountry should be familiar with the terrain and carry proper safety gear: a transceiver, shovel, and probe, along with a reliable means of communication.
Earlier this winter demonstrated how quickly conditions can change. After a dry start to 2026 in the Rockies and the Pacific Northwest, storms eventually brought heavy, dangerous snowfall. Over two weeks, avalanches claimed the lives of five skiers and snowmobilers near Canmore, Alta., and in the B.C. communities of Fernie, Revelstoke, Pemberton, and Creston. South of the border, nine people died in a large avalanche in California’s Sierra Nevada.
Researchers say avalanche risk could increase as climate change alters mountain weather. A 2024 study in the journal Nature confirmed findings from the Intergovernmental Panel on Climate Change, indicating that avalanche activity may increase at high elevations as precipitation levels rise.
Canada has warmed by about 2.4°C from 1948 to 2024. Warmer air holds more moisture, causing more precipitation — more rain at lower elevations and heavier snowfall higher in the mountains. Climate change is also shifting the weather towards a feast-or-famine cycle, with longer dry spells and intense storms, such as atmospheric rivers, delivering weeks of moisture in just a few days.
For backcountry riders, this can mean poor snow seasons, more rain-on-snow events, and sometimes walking kilometres to reach the snowline. It can also create pressure to make the most of limited snow days, which might lead travellers to underestimate avalanche hazards or venture into higher-risk terrain.
Avalanche conditions remain complex across much of the province. Conditions can vary significantly across short distances in the mountains.
INCOMING STORM CYCLE
A strong, cold storm will bring widespread snow to much of B.C. this week, with the heaviest snowfall expected from Wednesday into Thursday night.
The system moves in as a surface low approaches Vancouver Island and a warm front pushes into southern B.C., leading to heavy snowfall. Strong southwest winds are also expected in the alpine across the Coast Range and Interior.
Snowfall rates are expected to peak later in the week as the low moves across southern B.C.
Snow levels may briefly increase in the storm’s warm sector — around 600 metres at Whistler, 900 metres on the North Shore, and approximately 1,200 metres across parts of the southern Interior, including Red, Whitewater, and Fernie — before falling again behind the cold front early Thursday.
Further north — Sun Peaks, Revelstoke, and Kicking Horse — temperatures should rise only slightly, with snow levels remaining near the valley floors. Snow is expected to stay lighter and drier, while Red, Whitewater, and Fernie may experience denser snow overnight.
Behind the main system, a moderate westerly flow should keep snow showers going from Friday into Friday night. Another weaker disturbance is reaching southwest B.C. Friday evening and could bring additional snow to parts of the Interior overnight.
ESTIMATED SNOWFALL (WEDNESDAY-SUNDAY)
Fernie: 37–75 cm
Revelstoke, Whitewater, Rogers Pass, Kootenay Pass: 30–60 cm
Kicking Horse, Big White, Silver Star, Apex: 25–50 cm
Panorama, Kimberley: 22–45 cm
Sun Peaks: 20–40 cm
Most Interior resorts should see a healthy refresh from this cycle. Actual totals may vary locally, depending on wind and terrain.
LOOKING AHEAD
A few lingering snow showers are possible on Saturday, followed by a brief break in the pattern. Cold temperatures should keep snow conditions soft, although sun-exposed slopes could be affected.
A bigger shift is expected next week.
A storm arriving on Sunday or Sunday night will likely start with heavy snow as snow levels are still low. The system is expected to change into a warm atmospheric river, which could rapidly increase snow levels on Monday and Tuesday (March 16–17) — possibly reaching the summits of higher-elevation resorts like Whistler, Revelstoke, and Kicking Horse.
In short, enjoy the snowy pattern this week while it lasts. A warmer, wetter stretch could follow, with cooler air potentially returning later in March.
As always, conditions can vary significantly over short distances in the mountains, and recent field observations are often the best indicator of current avalanche hazard.
Staying safe begins with being well-informed and communicating clearly with your group. Be willing to adjust objectives as conditions evolve and let observations—rather than rigid plans—guide your decisions. Travelling in the winter mountains can involve risk, but slowing down and making cautious choices can significantly reduce it. Respect the terrain, keep an eye on each other, and be prepared to idle back when necessary. Not hiring a guide? Check out the BLBCA Self-Guided Recommendations or Avalanche Canada’s Trip Planner.
For the latest forecasts, trip planning tools and field reports, visit Avalanche Canada.
Brad Harrison, Colwest Alpine Adventures
Professional Member, Canadian Avalanche Association
Executive Director, Backcountry Lodges of BC Association
www.colwest.ca


