A significant snowfall warning is in effect for the Icefields Parkway between Lake Louise and the Saskatchewan River Crossing in Banff, Alberta, on March 20, 2026. According to Environment Canada, a long period of heavy snow is expected to continue through the high mountain passes until Saturday.
Areas at higher elevations, specifically those above 1,800 metres, could see between 30 and 50 centimetres of snow build up by the morning of Saturday, March 21, 2026. This heavy accumulation is expected to make travel very difficult for drivers using this route through the mountains.
Officials warn that visibility will likely be reduced at times and that road closures are possible as conditions quickly get worse. Parks Canada is responsible for maintaining the roads in the national park and managing any necessary closures for safety.
The heavy snow is expected to slow down and turn into light flurries by Saturday night. Drivers are encouraged to check for updates and be prepared for rapidly changing weather while travelling between Lake Louise and the Saskatchewan River Crossing.