Avalanche Forecast

Issued: Apr 1st, 2024 4:00PM

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

Avalanche Canada bchristie, Avalanche Canada

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Consider the consequences of any fall in steep terrain, and continue to use safe travel habits.

Rider triggered avalanches are still possible.

Summary

Confidence

High

Avalanche Summary

On Sunday, there were several small avalanches reported, generally thin storm slabs or loose wet avalanches, as well as natural avalanches triggered by sun.

On Saturday, there were several small and large (size 2) skier accidental storm slab avalanches reported. Mostly in steep terrain on east to north aspects in the alpine.

North of Revelstoke there was also one large (size 3) persistent slab avalanche triggered by a helicopter landing at 2300 m on a northeast aspect.

Snowpack Summary

Freezing levels are staying very elevated, but it's clouding over. Expect the surface to remain moist until the freezing level really drops on Wednesday.

20 to 40 cm of recent snow snow sits on surface hoar crystals that overly soft or wind affected snow on northerly alpine terrain or a hard melt-freeze crust elsewhere.

Weak faceted grains above a hard crust that formed in early February are buried around 100 to 150 cm deep. The layer is strengthening and is currently dormant.

The remainder of the snowpack is settled.

Weather Summary

Monday Night

Mostly clear. No new snow expected. Light to moderate southwest ridgetop wind. Treeline low around 2 °C.

Tuesday

Partly cloudy. No new snow expected. Light to moderate southwest ridgetop wind. Treeline high around 6 °C. Freezing level between 2500 and 3000 m.

Wednesday

Mostly cloudy. Light rainfall turning to snow as the freezing level drops. 5-10 cm possible at high elevations in some areas. Strong southwest ridgetop wind overnight, easing to light through the day. Treeline temperature around -5 °C.

Thursday

Mostly cloudy. 0-3 cm of snow expected above 1000 m. Light northeast ridgetop wind. Treeline temperature around -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Approach lee and cross-loaded slopes with caution.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Problems

Wind Slabs

An icon showing Wind Slabs

Moderate west and northwest winds have likely formed deeper, more reactive pockets of snow in lee terrain features near ridgetop. These slabs could rest on weak layers on northerly aspects and a hard crust elsewhere.

Aspects: North East, East, South East, South, South West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Loose Wet

An icon showing Loose Wet

Wet loose activity remains possible while freezing levels are elevated.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 2nd, 2024 4:00PM

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