Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Mar 2nd, 2025–Mar 3rd, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Coquihalla, Harrison-Fraser, Manning, Skagit.

Sunny aspects softening in the afternoon will provide the best riding but also heightened avalanche conditions.

Confidence

Moderate

Avalanche Summary

Recent avalanche activity has been mostly loose wet out of steep solar aspects, size 1-2.

Very large persistent slab avalanches were observed in the Manning area over a week ago.

Snowpack Summary

Below 1300 m, the snowpack is isothermal and disappearing quickly. At upper elevations, a widespread surface crust may break down during the day on sunny aspects, while shady aspects remain crusty.

A weak layer of facets and/or surface hoar is buried 50 to 120 cm deep. Large avalanches ran on this layer last weekend and it continued to give easy results in snowpack tests during the week.

A crust from December, buried 1 to 2 m deep, has been observed to be breaking down.

Weather Summary

Sunday night

Partly cloudy with a trace of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -1°C. Freezing level 1400 m.

Monday

Sunny. 10 to 30 km/h northeast ridgetop wind. Treeline temperature 0°C. Freezing level 1600 m.

Tuesday

A mix of sun and cloud. 10 to 30 km/h south ridgetop wind. Treeline temperature 0°C. Freezing level 1700 m.

Wednesday

A trace of snow overnight then clearing to a mix of sun and cloud. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -1°C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Be mindful that deep instabilities are still present in the snowpack.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.