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Avalanche Forecast

Archived

Apr 17th, 2024–Apr 18th, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Jasper, Brazeau, Churchill, Cirrus-Wilson, Fryatt, Icefields, Maligne, Marmot, Miette Lake, Pyramid.

Great Spring conditions in the Icefields!

Variable wind loading is possible on all aspects in the alpine.

Keep a weathered eye on our late-season PWLs; they're dormant but not quite gone!

Confidence

High

Avalanche Summary

No new avalanches were observed or reported.

Snowpack Summary

Convective spring storms have spread a trace, up to 10cm of new snow through the region. HN sits on a supportive snowpack to mountaintops on all aspects.

There's a strong midpack and dry snow above 2400m on shaded aspects. Solar aspects start as a supportive, hard surface crust that breaks down with strong sun and temps. BTL travel is quite variable but, almost always poor by early PM.

Weather Summary

Mountain Weather Forecast is available at Avalanche Canada

Wednesday Evening

Clearing and cooling overnight. Alpine low -13 °C. Ridge winds from NE 15 to 30km/h. Freezing level valley bottom.

Thursday

Mixed sun and cloudy periods. Alp High -7 °C. Ridge wind northeast: 10-30 km/h. Freezing level at valley bottom.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.