Avalanche Forecast

Issued: Apr 1st, 2023 7:30AM

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

Avalanche Canada ahanna, Avalanche Canada

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8 am update: Be cautious of fresh pockets of wind slab in isolated terrain features at upper elevations.

Summary

Confidence

High

Avalanche Summary

Avalanche activity over the past week has been limited to small wet loose avalanches and cornice falls during periods of warm sunny weather.

Snowpack Summary

A dusting of new snow is falling on moist or crusty snow layers, except shaded terrain above roughly 1400 m where the snow has remained dry over the past week. The middle of the snowpack is strong and contains numerous hard crusts. The lower snowpack is composed of weak basal facets. There hasn't been avalanche activity on it recently, but it will remain on our radar this spring as it may become active with abrupt changes to the snowpack, such as rapid loading (heavy snowfall or rain) or prolonged warming.

Weather Summary

Friday night

Cloudy, light flurries with 3 to 5 cm of snow, 30 km/h southwest wind, treeline temperatures drop to -8 °C with freezing level dropping to valley bottom.

Saturday

Mix of sun and cloud, some isolated flurries with trace amounts of snow, 20 km/h southwest wind, treeline temperatures around -5 °C.

Monday

Mostly sunny, no precipitation, 20 km/h northwest wind, treeline temperatures around -5 °C.

Tuesday

Mix of sun and cloud, isolated flurries with trace amounts of snow, 20 km/h northwest wind, treeline temperatures around -5 °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.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Problems

Wind Slabs

An icon showing Wind Slabs

Overnight snow may have formed fresh pockets of wind slab at upper elevations.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 1st, 2023 4:00PM