Sea To Sky

Wind slabs may still be rider-triggerable in the alpine.

Watch for moist surface snow in sheltered, sunny spots.

A few small, wet loose avalanches were reported on south-facing slopes on Sunday.

On Friday and Saturday, numerous natural as well as skier- and explosive-triggered wind slabs were reported size 1-2. Most were in reverse-loaded lees of ridgetop on west to southwest aspects at alpine and treeline elevations.

5 to 15 cm of recent snow sits over faceted old layers. The new snow has seen moderate wind effect at upper elevations. A crust has likely formed on the surface at low elevations and on steep slopes that saw the sun.

An otherwise right-side-up upper snowpack appears to be bonding well to a crust buried 70 to 100 cm deep. The mid and lower snowpack is generally well-settled and bonded with no deeper concerns.

Monday Night

Mostly clear skies. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2500 m.

Tuesday

Mostly cloudy. 20 to 50 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 2500 m.

Wednesday

5 cm of snow overnight then clearing. 10 km/h north ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 overnight, rising to 2500 m in the afternoon.

Thursday

A mix of sun and cloud, increasing. 35 km/h south ridgetop wind. Treeline temperature +3 °C. Freezing level 2500 m.

More details can be found in the Mountain Weather Forecast.

• Back off slopes as the surface becomes moist or wet with rising temperatures.
• Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.
• Be careful with wind-loaded pockets, especially near ridge crests and rollovers.