Avalanche Forecast

Issued: Mar 12th, 2019 4:37PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Storm Slabs.

Avalanche Canada kdevine, Avalanche Canada

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Storm slabs may be reactive to human triggering, especially in wind loaded areas, and on steep, sun exposed slopes. Watch for signs of instability such as whumphing, cracking and recent avalanches.

Summary

Confidence

Moderate -

Weather Forecast

TUESDAY NIGHT - Cloudy with clear periods / northwest wind, 10-30 km/h / alpine low temperature near -13WEDNESDAY- Cloudy with sunny periods / southwest winds, 15-25 km/h / alpine high temperature near -11THURSDAY - Cloudy with sunny periods and isolated flurries / southwest winds 15-30 km/h / alpine high temperature near -9 / freezing level 1400 mFRIDAY - Mainly cloudy / southwest winds, 10-25 km/h / alpine high temperature near -7 / freezing level 1500 m

Avalanche Summary

Expect to find reactive storm slabs at upper elevations, especially in wind loaded areas and on steep, sun-exposed slopes.No new avalanches were reported in the region on Monday.

Snowpack Summary

20-50 cm of recent storm snow sits mainly on facets (sugary snow), as well as surface hoar (feathery crystals) in sheltered areas and a crust on sun exposed slopes. At lower elevations, a weak layer buried in mid January can be found approximately 50-80 cm deep. This layer consists of surface hoar and facets, and may be combined with a crust on south facing slopes. This layer has been most reactive at treeline and below. Avalanche activity has dropped off significantly, however it may still be possible to trigger avalanches on this layer in areas such as steep cutblocks, and large open glades in the trees.The lower snowpack is generally considered to be strong, except for shallow, rocky areas where cold temperatures continue to facet (weaken) the snowpack.

Problems

Storm Slabs

An icon showing Storm Slabs
20-50 cm of recent storm snow fell with moderate to strong southwest winds. Storm slabs will likely be reactive, especially in wind loaded areas and on steep, sun-exposed slopes.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 13th, 2019 2:00PM