New snow and sunshine in Cheam

South Coast Inland

Avalog Forecaster , Wednesday 17th February, 2021 4:55PM

We were deployed to the Cheam Peak zone to investigate a crust/facet layer that has been problematic in the North Cascades south of the border as well as the south coast region. We found the crust down 125 cm. but the snow was well bonded to it in the area we observed. 30 cm. of recent snow and moderate winds formed reactive storm slabs failing on a storm interface of stellar crystals. This layer will most likely not be a problem after today. We saw numerous storm slabs up to size 2 on large alpine slopes below Lady Peak that were triggered by wind during last night’s storm. The sun was starting to heat up the new snow enough to trigger small wet loose avalanches on steep south facing slopes in the afternoon.

Snow conditions were: Wind affected, Powder. Weather conditions were: Warm, Sunny. We rode: Mellow slopes. We avoided: Alpine slopes, Sunny slopes. Riding quality was good.

Avalache Conditions: 30cm + of new snow, or significant drifitng, or rain in the last 48 hours. Slab avalanches today or yesterday.

Source: Avalanche Canada MIN