Avalanche Forecast
Cariboos
Your hunt for sheltered snow is likely to lead you to the same areas where storm slabs are a concern. Stick to supported slopes to limit your exposure.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Give cornices a wide berth when travelling on or below ridges.
- Use extra caution in the afternoon if the snow becomes moist or wet.
- Be cautious around steep or convex slopes where buried surface hoar may be preserved.
Avalanche Summary
Reports from Monday included another ski cut storm slab (size 1) on a high north aspect in the southern part of the region.
Sunday's reports included two small skier-triggered storm slabs that released on a north aspect in the alpine. Their crown fractures were 25 cm deep.
Last Wednesday there were reports of several natural, loose, wet avalanches up to size 1.5 on south aspects at all elevations, as well as a skier triggered wind slab (size 1) on a northeast aspect at 2300 m.
Snowpack Summary
Recent light snowfalls have been followed by warm daytime temperatures and glimpses of sun, setting up a couple of thin storm snow layers over temperature and sun crusts at lower elevations and on south aspects. On shaded aspects at higher elevations, these snowfalls have buried and preserved a couple of surface hoar layers now found up to 25 cm deep. The deepest of these surface hoar layers has been the failure plane in several recent slab avalanches.
New snow amounts taper with elevation and below 1800 m, minimal accumulations have buried a supportive crust on all aspects. This crust will likely break down with daytime warming, becoming moist in the afternoon.
Persistent weak layers from early January and mid-December are still being reported by local operators. They are generally considered dormant, but could wake up with a surface avalanche stepping down, a large cornice fall, or a human trigger in a shallow or variable-depth snowpack area. These layers consist of sun crust, surface hoar and/or facets.
Weather Forecast
Wednesday: Cloudy with isolated flurries and a trace of new snow. Light to moderate southeast winds, increasing overnight. Freezing level to 1600 metres with alpine high temperatures around -4.
Thursday: Cloudy with isolated flurries and a trace of new snow, increasing overnight. Strong southeast winds. Freezing level to 2000 metres with alpine high temperatures around 0.
Friday: Mainly cloudy with continuing isolated flurries and a trace of new snow. Moderate to strong southwest winds. Freezing level to 1300 metres with alpine high temperatures around -6.
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Avalanche Canada has switched to an RSS feed for its daily forecasts. This is a much more flexible method that allows automatic delivery to your email inbox, or to an RSS reader of your choice.
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Isolated pockets of surface hoar on sheltered, high north aspects have led to prolonged reactivity of storm slabs about 25 cm deep. Isolated wind slabs and mature cornices are other hazards to manage at higher elevations.