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Avalanche Forecast

Feb 3rd, 2025–Feb 4th, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Coquihalla, Manning, Skagit.

You may be surprised to find the storm snow is easier to trigger in protected areas where the weak layer beneath has been preserved.

Confidence

High

Avalanche Summary

Thank you for all the great MIN reports this past weekend!

  • shooting cracks and a remotely triggered storm slab avalanche were reported in this MIN from southeast of Hope

  • snowpack tests in the Coquihalla area produced easy shears below the storm snow in this MIN

Snowpack Summary

30 to 60 cm of snow fell over the weekend.

In wind exposed areas, this new snow fell on a surface of wind affected old snow.

In sheltered areas, this new snow has fallen on a weak layer consisting of a combination of faceted grains, surface hoar, and a hard crust that formed during the January drought.

The mid snowpack contains a few other crust layers. One from December is buried 80 to 120 cm deep and may have facets around it in shallow areas.

The lower snowpack is well consolidated.

Weather Summary

Monday Night

Partly cloudy with trace of new snow. 15 to 30 km/h outflow ridgetop wind. Treeline temperatures -18 °C.

Tuesday

A mix of sun and cloud with up to 3 cm of new snow. 10 to 20 km/h southeast ridgetop wind. Treeline temperatures -13 °C.

Wednesday

A mix of sun and cloud. 10 to 15 km/h southeast ridgetop wind. Treeline temperatures -13 °C.

Thursday

A mix of sun and cloud. 10 to 15 km/h southeast ridgetop wind. Treeline temperatures -10 °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.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.

Avalanche Problems

Persistent Slabs

Stay away from large steep slopes, as well as slopes that are protected, where the weak layer of facets/surface hoar combined are sitting on a hard crust has been preserved.

A widespread layer of facets has been reported around Manning park

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2.5

Wind Slabs

Previous southwesterly winds have veered into northeasterly outflow winds. Take extra caution when transitioning into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2