Parks Canada is issuing a SPAW for the Banff/Yoho/Kootenay National Parks this weekend, May 4-5. April has been a cool, wintery month with continuing snow in the alpine. The forecast of warm temperatures this weekend will likely cause a change to the alpine snowpack, bringing about a large, natural avalanche cycle.
This time of year sees the summer and winter seasons collide, and our concerns include people hiking along valley-bottom trails that may be affected by avalanches. Areas that are not recommended to be hiking, especially in the heat of the day, include: Plain of Six Glaciers trail, Lake Agnes trail, Fairview Mtn, Castle Mtn Lookout, Sulphur Mtn, etc. All of these trails have significant avalanche paths crossing them and will likely have avalanche activity as the day heats up.
April 30th marks the last day of the season for our daily avalanche bulletin. Have a great summer.
Parks Canada Visitor Safety