Avalanche Forecast
Issued: Jan 13th, 2023 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs and Wind Slabs.
TJ,
Avalanche Canada
Keep an eye on high rising freezing levels on Saturday.
Summary
Confidence
Moderate
Avalanche Summary
Large avalanches have been observed in the west side of Jasper. No new avalanches were observed by the field team in Maligne on Friday.
If you're out in the hills, don't forget to post to the MIN. Every bit of information helps!
Snowpack Summary
High freezing levels will continue into Saturday. The alpine and open tree line terrain is wind affected. Large facets and depth hoar comprise most of the snowpack. The snowpack varies from 50-85cm in depth and is unsupportive.
Weather Summary
Saturday
A mix of sun and cloud.
Precipitation: Nil.
Alpine temperature: High -3 °C.
Ridge wind southwest: 15-30 km/h.
Freezing level: 1800 metres.
Sunday
Cloudy with sunny periods.
Precipitation: Nil.
Alpine temperature: Low -6 °C, High -3 °C.
Ridge wind south: 10 km/h.
Freezing level at valley bottom.
Alpine temperature inversion.
Detailed weather forecasts from Avalanche Canada: https://www.avalanche.ca/weather/forecast
Terrain and Travel Advice
- Make conservative terrain choices and avoid overhead hazard.
- A moist or wet snow surface, pinwheeling and natural avalanches are all indicators of a weakening snowpack.
Problems
Deep Persistent Slabs
The bottom of the snow pack is inherently weak with well developed Facets and Depth Hoar. Avalanches initiating in the upper snowpack are likely to step down to this layer and gain significant mass.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 14th, 2023 4:00PM
