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Avalanche Forecast

Dec 11th, 2024–Dec 12th, 2024
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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

Regions: Coquihalla, Harrison-Fraser, Manning, Skagit.

Isolated pockets of wind slab may be found in the high alpine on north through east aspects.

The best riding conditions will be found in wind-sheltered terrain.

Confidence

Moderate

Avalanche Summary

There have been no recent avalanche reports in the region.

If you are going out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

Newly formed surface hoar may exist in wind-sheltered, open terrain. A thin melt-freeze crust may exist on south-facing slopes.

In the alpine, 20 to 40 cm of snow from last weekend sits above a thin crust. At lower elevations, 10-20 cm of snow sits above a more robust crust. The snow is moist below the crust.

Snow depths at treeline vary across the region. Around 90 cm is reported in the Coquihalla and 60 cm near Manning Park.

Weather Summary

Wednesday Night

Cloudy with clear periods. Treeline temperature -3 °C. Ridgetop wind light with gusts up to 40 km/hr from the south. Freezing level 300 m with a weak temperature inversion.

Thursday

Cloudy with wet flurries 2 to 5 mm. 15 to 30 km/h southeast ridgetop wind. Treeline temperature +1 °C. Freezing level 1400 m.

Friday

Snow at higher elevations and rain 5 to 10 mm. 15 to 45 km/h southeast ridgetop wind. Treeline temperature +1 °C. Freezing level 1400 m.

Saturday

Snow 10 to 20 cm. 15 to 70 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Be alert to conditions that change with aspect and elevation.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

Avalanche Problems

Wind Slabs

Wind slabs may be possible to trigger at high elevations where dry snow has been loaded into leeward terrain features.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2