Avalanche forecast

Coquihalla

Feb 22 – 23, 2024Avalanche Canada
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Avalanche danger

Sat
Sun
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low

Highlights

Normal cautions should be sufficient to manage lingering wind slabs in steep terrain near ridgetops.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–1.5

    Older wind slabs across a range of aspects have mostly stabilized. In isolated steep terrain, some slabs formed over weak snow grains sitting on hard crust may still react to a human trigger.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the past few days. Operators in the Hope area noted small sluffing of new snow from steep terrain on Wednesday, confined to areas where smooth snow coverage exists.

Snowpack Summary

Light new snow amounts have begun to accumulate over a variety of surfaces including; surface hoar in sheltered terrain, A crust on south aspects and all aspects below treeline and old wind effected surfaces in exposed terrain.

A widespread crust exists 25-40 cm below the surface, and surface hoar has been found above the crust in some parts of the region. Old, likely stubborn wind slabs formed over this layer are a lingering concern.

The remainder of the snowpack is well settled. Conditions remain rugged at lower elevations.

Weather Summary

Wednesday night

Cloudy with flurries bringing up to 5 cm of new snow to higher elevations, light rain below about 1400 m. 5 to 15 km/h southeast alpine wind shifting southwest. Freezing level steady around 1400 m.

Thursday

Cloudy with isolated wet flurries at higher elevations, light rain below about 1500 m. 10 to 20 km/h southwest alpine wind. Treeline temperature around -1 °C with freezing level to 1500 m.

Friday

A mix of sun and cloud. 30 to 40 km/h southwest alpine wind, increasing. Treeline temperature around 0 °C with freezing level to 1600 m.

Saturday

Cloudy with flurries bringing 5-10 cm of new snow, including overnight amounts. 35-40 km/h southwest alpine wind. Treeline temperature -3 C with freezing level to 1300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.

Regions covered