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Archived

Avalanche Forecast

Dec 13th, 2020–Dec 14th, 2020
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
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
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

Regions: Jasper.

Even with low danger ratings avalanches are still possible.

Weather Forecast

Parker Ridge Area

Monday: Cloudy with sunny periods and isolated flurries. Precipitation: Trace. Alpine temperature: High -8 °C.  Ridge wind SW: 10-30 km/h.

Tuesday: Flurries. Accumulation: 6 cm. Alpine temperature: Low -10 °C, High -9 °C. Ridge wind southwest: 15 km/h gusting to 45 km/h.

Snowpack Summary

The storm snow is unconsolidated and faceting with the cold temps while overlying a variety of surfaces ranging from old hard wind slab, facets and crusts on steep solar aspects. The bottom of the snowpack is continuing to facet.

Avalanche Summary

Good visibility around the Hilda Zone today. A few loose dry avalanches were observed to sz 1.5 on steep alpine features.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Wednesday

Avalanche Problems

Loose Dry

Yesterday, dry loose avalanches were observed from steep alpine features. In these high consequence locations even a small avalanche could be deadly.

  • Use caution above cliffs where small avalanches may have severe consequences.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2

Deep Persistent Slabs

Be cautious of thick to thin snowpack areas being likely trigger locations. Weak facets layers near the ground continue to become weaker with these cold temperatures.

  • Use caution in thin snowpack areas.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3