On Monday, the park received up to 100 mm of precipitation in some areas, falling as both snow and rain. The high-elevation areas, such as the Skyline trail, received an estimated snow accumulation of up to 70 cm, while lower elevations experienced lesser amounts. The heavy snowfall resulted in widespread tree damage, making travel conditions on trails challenging and, in some cases, impassable, with Parks Canada having to rescue dozens of people who were left stranded in some areas.