Avalanche Forecast

Issued: Mar 1st, 2022 4:00PM

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

Avalanche Canada lcrawley, Avalanche Canada

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Avoid steep slopes while the snowpack adjusts to the new snow. 

Danger may be lower in the north of the region where there has been less snow and rain. 

Summary

Confidence

Moderate -

Weather Forecast

Tuesday Night: Flurries 1-5 cm, moderate to strong southwest wind, freezing levels falling to 1700-1900 m by the morning.

Wednesday: 5-10 cm of snow possibly 10-15 cm in the south of the region. Strong wind in the morning decreasing to moderate west in the afternoon. Freezing levels around 2000 m falling to 800 m in the evening.

Thursday: Light snow 3-5 cm, light to moderate south wind, freezing levels around 1000 m.

Friday: Trace of snow, light north wind, skies clearing, freezing level valley bottom.

Avalanche Summary

Tuesday: Neighbours immediately to the south reported a widespread, wet avalanche cycle to size 3. Several natural size 2 wet avalanches were seen on Wapiti Mountain near Elkford.

Monday: Several natural size 2 storm slab avalanches were spotted by the South Rockies field team just north of Sparwood. In the southeast of the region operators reported size 1-1.5 skier controlled storm slabs and loose wet avalanches.

Snowpack Summary

Snowfall amounts have varied substantially since the start of the week with south of highway 3 receiving 30-50 cm and the north getting 10-20 cm. This fell as rain at lower elevations. Wind loading from moderate to strong southwest wind continues. New snow will need time to bond to a variety of old surfaces such as firm wind-pressed snow, sun crust on solar aspects, and potentially weak, sugary crystals on shaded aspects.

The middle and lower snowpack are generally well consolidated, with a crust/facet layer from early December found near the bottom of the snowpack. It is currently considered dormant but could become active later this season. 

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.

Problems

Storm Slabs

An icon showing Storm Slabs

Continued loading from new snow and wind has formed storm slabs on all aspects. Moderate to strong southwest winds are loading lee slopes around ridge crests, as well as cross-loaded features making these places much more dangerous.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Likely

Expected Size

1 - 2.5

Loose Wet

An icon showing Loose Wet

Rain on snow at low elevations has made wet loose avalanches possible.

Aspects: All aspects.

Elevations: Below Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 2nd, 2022 4:00PM

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