Sea To Sky

Watch for changing conditions on solar aspects if the day is hot and sunny.

High -

MONDAY: Mainly sunny, with increasing clouds late in the day. Light to moderate northerly winds. Treeline temperature near -2.TUESDAY: Cloudy with flurries. Moderate south-westerly winds. Treeline temperature near -1.WEDNESDAY: Clearing. Light winds. Treeline temperature near -5.More details can be found in the Mountain Weather Forecast.

On Saturday, two skier-triggered wind slabs were reported: a size 1.5 wind slab from a cross-loaded feature on a northwest aspect at 1900 m, and a size 2 on a north aspect at 2350 m, both near Whistler.On Friday, evidence of a natural cycle which likely occurred near the end of the warming period earlier in the week was reported, with storm slab activity up to size 3 observed on north to east aspects in the Mt Currie area.On Thursday, avalanche control with explosives triggered numerous slab avalanches up to size 2. Cornice releases triggered wind slabs from the slopes below up to size 1.5. With colder temperatures expected this weekend, natural avalanche activity will likely taper off, but human triggering will be possible especially on leeward and cross-loaded slopes.

Highly variable snow surfaces exist. On south-facing alpine slopes, you're likely to find scoured crusty surfaces, while reactive wind slabs have built on lee slopes facing roughly north. A melt-freeze crust has formed up to about 1900 m.On average, 180 cm of settled snow now sits on the mid-January crust which generally shows signs of bonding to the overlying snow; however, it has the potential to wake up with a large trigger such as a cornice fall. Below this, the snowpack is thought to be generally strong and well-settled.