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

Nov 24th, 2024–Nov 25th, 2024

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

Regions

South Coast, Garibaldi, Powell River, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron.

Storm and wind slabs at upper elevations are the main concern as the recent stormy period comes to an end.

Confidence

Moderate

Avalanche Summary

On Saturday reports of a few small (size 1) moist storm slab avalanches at treeline.

Please consider sharing any observations you have on the Mountain Information Network.

Snowpack Summary

A series of storms over the past week have brought up to 100 cm of snow to upper elevations. The freezing level has fluctuated between 1000 and 1400 meters over the past several days. This has resulted in variable conditions below treeline, where precipitation has been a mix of snow and rain.

The snowpack is generally 150 to 200 cm deep around treeline, with significant snow accumulation in wind-loaded areas. Snow depths rapidly decrease at lower elevations.

Weather Summary

Sunday Night

Cloudy with 1-3 cm of snow. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -3 °C. Freezing level 1100 m.

Monday

Mostly cloudy with scattered flurries, accumulation 1-2 cm. 20-30 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Tuesday

Mix of sun and cloud. 20 to 30 km/h west and northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 900 m.

Wednesday

Mostly cloudy with sunny breaks. 25 to 45 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

Problems

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.