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Archived

Avalanche Forecast

Nov 22nd, 2024–Nov 23rd, 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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Coquihalla, Manning, Skagit.

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

Confidence

Low

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.

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

Weather Summary

Friday Night

Mostly cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1400 m.

Saturday

Mostly cloudy. 10 to 20 km/h south ridgetop wind. Treeline temperature -4 °C. Freezing level 1400 m.

Sunday

Mostly cloudy with 0 to 2 cm of snow. 10 to 20 km/h south ridgetop wind. Treeline temperature -4 °C. Freezing level 1100 m.

Monday

Cloudy with 0 to 2 cm of snow. 10 to 20 km/h south ridgetop wind. Treeline temperature -4 °C. Freezing level 1100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Be cautious of buried obstacles, especially below treeline.

Avalanche Problems

Wind Slabs

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

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2