Avalanche Forecast

Archived

Apr 3rd, 2022–Apr 4th, 2022

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely.

Regions

Little Yoho.

If temperatures are warmer than forecasted and rain arrives on Monday instead of snow, a wet loose avalanche problem could be present at lower elevations. Otherwise, be on the lookout for fresh wind slabs in the alpine.

Weather Forecast

10 to 15cm of new snow is expected to fall throughout the day on Monday. Accompanying the snow is strong wind from the SW. Temperatures will remain relatively cool over the next 3 days with the valley's not much hotter than 3 or 4 degrees in the afternoons, and the ridges around -10 degrees.

Snowpack Summary

2-5cm of low density new snow over surface melt-freeze crusts that can be found on all aspects up to approx. 2300m and higher on solar aspects. On high elevation north aspects, deeper dry snow persists with isolated thin wind slabs in the alpine. The mid-pack is well settled but has several persistent layers consisting of crusts and/or facets.

Avalanche Summary

No avalanches observed or reported on Sunday.

Confidence

Freezing levels are uncertain on Monday

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.