Avalanche Forecast
Issued: Dec 13th, 2020 4:08PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Loose Dry and Deep Persistent Slabs.
Timothy Johnson,
Even with low danger ratings avalanches are still possible.
Summary
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
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
Expected Size
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
Expected Size
Valid until: Dec 14th, 2020 4:00PM
