Avalanche forecast

South Coast

Feb 9 – 10, 2023Avalanche Canada
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Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
2 · Moderate

Highlights

Winds and recent snow at higher elevations will have produced wind slabs while rain and warmer temperatures at lower elevations may produce wet loose avalanches.

Find the best and safest riding in between these two zones.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2

    New snow combine with southerly winds and warm temperatures will likely keep the wind slab problem reactive to rider traffic.

    Slabs may slide easily on an underlying crust. Winds have redistributed new snow into deep pockets in lees, watch for an increase in slab properties and reactivity.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2

    A rain saturates the upper snowpack at lower elevations, loose wet avalanches will become increasingly likely.

Confidence

Moderate

Avalanche Summary

On Wednesday, skiers controlled triggered two wet loose avalanches. There was also a report of an accidentally triggered storm slab avalanche with no involvement.

A large storm slab avalanche was reported on the 5th in the Tetrahedron. We anticipate more of these types of avalanches are likely to occur due to this last storm.

There is potential for deep storm slabs and wind slabs to slide on a buried crust, producing large and destructive avalanches.

Snowpack Summary

Moderate southerly winds will have redistributed the up to 70 cm that has fallen this week. Southerly winds have redistributed this snow into wind slabs at higher elevations.

A hard crust can now be found in sheltered, approximately 60 to 80 cm deep. The rest of the mid and lower snowpack seems strong and consolidated.

Snowpack depths are reaching 230 cm at treeline.

Weather Summary

Wednesday Night

Clouding over early in the evening, 5 cm accumulation with more to the northwest, wind south southwest 25 to 35 km/h increasing by morning, treeline temperatures -4 C.

Thursday

Mostly cloudy, up to 5 cm accumulation in the morning and more snow starting in the evening at higher elevations, wind southerly 45 km/h gusting to 75, treeline temperatures at 1 C and warming at the end of the day.

Friday

Cloudy, up to 30 cm accumulation at a higher elevation by the morning with rain below 1300 m and another 15 to 25 cm during the day and into the evening, wind southerly 45 km/h, treeline temperatures -3 C.

Saturday

Cloudy, 2 cm accumulation, wind southwest 25 km/h, treeline temperatures cooling to - 5 C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind the crust offers an excellent bed surface for avalanches.
  • Good day to make conservative terrain choices.
  • Choose low-angled, sheltered terrain where new snow hasn't been wind-affected.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.

Regions covered