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

North Rockies, Sugarbowl, McGregor, Pine Pass, Tumbler.

Expect a mix of wind-affected surfaces at treeline and above. Easterly winds have formed dense slabs on west-facing slopes while likely scouring snow from east-facing slopes.

Confidence

Low

Avalanche Summary

No new avalanches have been reported in the past few days.

Observations remain very limited this early in the season. if you head into the backcountry, please post to the Mountain Information Network! Any snow information, avalanche observations (or lack of!) are super helpful to the forecasters and other backcountry users.

Snowpack Summary

Surface conditions includes wind affected snow in exposed areas, and up to 40 cm of settling snow in sheltered terrain features.

Below this, facets or surface hoar may exist on a crust buried in early November. At the northern end of this region, expect to find weak and sugary depth hoar near the ground.

Treeline snowpack depths are around 100 cm.

Weather Summary

Sunday Night

Partly cloudy with isolated flurries possible. 20 km/h northerly ridgetop winds. Treeline temperature -16 °C.

Monday

Partly cloudy with isolated flurries. Westerly ridgetop winds increase over the day to 40-60 km/h. Treeline temperature -12 °C.

Tuesday

Mostly clear skies. Westerly ridgetop winds remain strong, around 50 km/h. Treeline temperature -12 °C.

Wednesday

Mostly cloudy with flurries. Westerly ridgetop winds ease over the day, 30-50 km/h. Treeline temperature -14 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Keep your guard up at all elevations. Wind slab formation has been extensive and could extend into openings below treeline.
  • Be especially cautious as you transition into wind-affected terrain.

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.