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Archived

Avalanche Forecast

Jan 8th, 2020–Jan 9th, 2020
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
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: Little Yoho.

Dangerous avalanche conditions exist in alpine and tree-line locations. Conservative route choices are required.

Weather Forecast

An arctic ridge of high pressure develops over Alberta on Thursday. Cool temperatures, only light flurries and diminishing winds are expected. Cold temperatures will persist through the weekend.

Snowpack Summary

20-40 cm of snow, and strong wind from last few days have formed fresh wind and storm slabs. In most areas the mid and lower pack is well settled. Some areas have reports of buried surface hoar down 40-50 cm. It will be important to dig a pit to see if there is surface hoar in the region that you are skiing.

Avalanche Summary

No avalanches observed or reported in Little Yoho today.

Confidence

Avalanche Problems

Storm Slabs

Recent snow and winds have created fresh storm and wind slabs in alpine and treeline regions. It will take several days before these instabilities start to settle out.

  • If triggered the storm slabs may step down to deeper layers resulting in large avalanches.
  • Use caution in lee areas. Recent wind loading have created storm slabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Deep Persistent Slabs

In areas where there is a weaker lower pack there is still some potential for avalanches to step down into these weaker areas.

  • Avoid shallow snowpack areas where triggering is more likely.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 3.5