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Avalanche Forecast

Jan 13th, 2024–Jan 14th, 2024
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
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: Coquihalla, Harrison-Fraser, Manning, Skagit.

Watch for active wind transport building fresh and reactive slabs on south facing slopes.

Sheltered areas should hold great riding conditions, seek them out and be aware of overhead hazard.

Confidence

Moderate

Avalanche Summary

On Friday natural wind slabs were observed during active wind transport. Loose dry sluffing was reported in sheltered terrain features.

On Thursday a size 2.5 natural wind slab was reported on a south aspect at treeline. Skiers also reported seeing the crown of a size 2 natural avalanche between Zopkios Ridge and Yak Peak.

If you head into the backcountry, please consider submitting a MIN report.

Snowpack Summary

Wind slab exists on south facing slopes at treeline and above, from northerly winds.

Wind affected snow overlies 20-50 cm of snow over a crust (which reports suggest is bonding well) and a well-settled snowpack in the alpine and upper treeline.

Treeline snowpack depths range from 100 to 180 cm. The last few storms have brought winter to the Cascades, and lower-elevation areas may now be at threshold for avalanches.

Weather Summary

Saturday Night

Clear skies. Northerly winds, 10-30 km/h. Treeline temperature around -22 °C.

Sunday

Clear skies. Northerly winds, 30-50 km/h. Treeline temperature around -18 °C.

Monday

Clear skies. Northerly winds, 30-50 km/h will ease over the day. Treeline temperature around -13 °C.

Tuesday

Clear skies. Southwest winds return 30-50 km/h. Treeline temperature around - 8 °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.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.

Avalanche Problems

Wind Slabs

Winds have varied so assess for wind slabs on all aspects. Slabs may be found near ridgelines or lower on the slope than usual. Watch for crossloading in unusual features like mid slope gullies and rollovers.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2