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Archived

Avalanche Forecast

Dec 8th, 2024–Dec 9th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
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
2: Moderate
The avalanche danger rating at treeline will be moderate
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Coquihalla, Manning, Skagit.

Ease into terrain on Monday. Verify conditions as you travel and tune into any signs of instability.

Confidence

Low

Avalanche Summary

There have been no recent reports in the region. We suspect the likelihood of avalanches has decreased substantially since the storm on the weekend, but rider-triggered storm slabs may still be possible at upper elevations on Monday.

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

Snowpack Summary

At upper elevations, 20 to 40 cm of snow from the weekend is expected to bond well. At lower elevations, a crust develops over a rain-soaked snowpack.

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

Weather Summary

Sunday Night

Cloudy. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Monday

Mostly sunny. <10 km/h northwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Tuesday

A mix of sun and cloud. <10 km/h northwest ridgetop wind switching southwest increasing to 30 km/h. Treeline temperature 0 °C. Freezing level rising to 2700 m.

Wednesday

Mostly cloudy. 30 to 50 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

Avalanche Problems

Storm Slabs

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

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5