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Avalanche Forecast

Nov 21st, 2024–Nov 22nd, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Birkenhead, Coquihalla, Duffey, Harrison-Fraser, Homathko, Manning, Sea To Sky, Skagit, South Chilcotin, South Coast Inland, Stein, Taseko.

Assess for wind slabs at higher elevations before committing to consequential terrain.

Confidence

Moderate

Avalanche Summary

We haven't received any recent reports of avalanche activity. Looking forward, it may be possible for riders to trigger slabs, particularly in wind-loaded terrain features at treeline and alpine elevations.

Watch out for early-season hazards like creeks, logs, and rocks, particularly at lower elevations.

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

Snowpack Summary

Around 100 cm of snow is found in the alpine, with the snowpack depth rapidly dropping with elevation below treeline. Recent snow and strong wind have formed storm and wind slabs, which are likely starting to bond to the snowpack. New snow and wind on Friday may form new slabs, particularly in wind-exposed terrain at high elevations.

Various melt-freeze crusts are found in the bottom half of the snowpack but are not avalanche concerns.

Weather Summary

Thursday Night

Partly cloudy. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -5 °C.

Friday

Cloudy with 5 to 10 cm of snow. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -4 °C.

Saturday

Cloudy with 5 to 10 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -4 °C.

Sunday

Mix of sun and cloud. 10 km/h east ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.

Avalanche Problems

Wind Slabs

Recent snow and strong southeast wind likely formed wind slabs. Riders are most likely to trigger them on steep lee slopes adjacent to ridges.

Aspects: North, North East, West, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2