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Archived

Avalanche Forecast

Jan 24th, 2013–Jan 25th, 2013
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
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: South Coast.

Confidence

Poor - Timing, track, or intensity of incoming weather is uncertain for the entire period

Weather Forecast

The timing and intensity of incoming snow and wind is uncertain.Friday: Moderate SW wind. Alpine temperature near -5. 5-10 cm snow overnight Thursday, ending on Friday.Saturday: Light NW wind. Alpine temperature near -6. Light snow is possible.Sunday: Light to moderate SW wind. Alpine temperature near -8. Light snow.

Avalanche Summary

A natural cycle of wet slabs was triggered by rain at the beginning of the storm on Wednesday around the Coquihalla.

Snowpack Summary

New snow is landing on a medley of surfaces including hard wind slabs, thin and thick crusts and large surface hoar crystals which can be found in sheltered areas below treeline. Southerly winds have shifted snow into soft slabs on lee slopes. A surface hoar layer buried down 40-80 cm seems to be gaining strength. Near the base of the snowpack, a crust/facet layer exists, which is now unlikely to be triggered, except perhaps by heavy triggers in unsupported, shallow, rocky terrain where more faceting has taken place.

Avalanche Problems

Storm Slabs

Be alert for new storm slabs, wind slabs or loose dry avalanches in any steep terrain over the next few days.
Avoid freshly wind loaded features.>Be cautious of sluffing in steep terrain.>

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 4