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Archived

Avalanche Forecast

Mar 16th, 2024–Mar 17th, 2024
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Harrison-Fraser, North Shore, Powell River, Sasquatch, South Coast, Stave, Tetrahedron.

Natural activity is expected to continue as temperatures remain high.

Avoid avalanche terrain, particularly sun affected slopes.

Confidence

High

Avalanche Summary

Wet avalanche activity was observed Thursday and Friday with strong sunshine and warm temperatures producing small loose avalanches.

Continued widespread wet avalanches and cornice failures are expected as warming persists. We expect avalanches to increase in size as temperatures remain high over the weekend with limited overnight refreeze.

Snowpack Summary

The upper 30-50 cm of the snowpack is wet from warm temperatures and strong sunshine. This wet snow has a poor bond with the dry snow, or thin crust found below.

The mid and lower snowpack is well settled and dense, however buried crusts exist that may make sliding surfaces for avalanche activity as the warming affects deeper into the snowpack.

Check out this Mt Strachan MIN for more details.

Weather Summary

Saturday Night

Clear skies. 30 km/h southerly ridgetop wind. Freezing level remains above 3000 m.

Sunday

Sunny. 20 km/h southerly ridgetop wind. Treeline temperature +13 °C with freezing level remaining at 3300 m.

Monday

Sunny. 10-20 km/h southwest ridgetop wind. Treeline temperature +12 °C with freezing level above 3000 m.

Tuesday

Sunny. 30 km/h southwest ridgetop wind. Treeline temperature +10 °C with freezing level dropping to 2500 m in the afternoon.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • A moist or wet snow surface, pinwheeling and natural avalanches are all indicators of a weakening snowpack.
  • Avoid exposure to overhead avalanche terrain as temperatures increase.
  • Cornices become weak with daytime heating or solar exposure.

Avalanche Problems

Loose Wet

Loose wet or wet slab avalanches are increasingly likely as warming continues, with no overnight cooling. Greatest concern is for steep south-facing slopes.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 2.5