Skip to content
Join our Newsletter

Backcountry bulletin: Whistler isn't done with winter yet

'As is typical during stormy periods, slab avalanches are expected and will likely drive the avalanche hazard this weekend'
pemberton backcountry storm conditions
Snow and stormy conditions are expected to return Whistler and the rest of the Sea to Sky this March, driving avalanche hazards after a spell of sunny spring weather this week.

It looks like we are in for more wintery weather this weekend, with new snow, strong winds, and cool alpine air temperatures in the forecast. This will be a nice change for powder seekers, although basking in the sun at the mountain tops is surely also enjoyable at this time of the season.

As is typical during stormy periods, slab avalanches are expected and will likely drive the avalanche hazard this weekend. Both storm and wind slabs may develop during stormy periods and human-triggered avalanches should be expected in the days during and after the storm. Storm slabs will form where sufficient snow accumulates in terrain sheltered from the wind, while wind slabs will dominate in leeward terrain features near ridgetops where winds are stronger.

Don’t forget that cornices are very large at this time of year and can fail naturally or from the weight of a human or machine. They can result in very large, destructive avalanches when they do.

The best method to have a safe day is to understand where the avalanche problems are located and to avoid these areas. Check the avalanche forecast before heading out for the latest information on what elevation and aspects these problems exist.

When you’re out in the backcountry, look for clues of instability such as recent avalanches, whumpfing, or cracking at your skis. If you are uncertain, keeping a conservative mindset and avoiding consequential slopes is the prudent choice. Luckily, there are plenty of mellow terrain features and tight trees that are super fun to ride during stormy conditions.