Avalanche forecast

Haines Pass

Mar 13 – 14, 2024Avalanche Canada
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Avalanche danger

Fri
Sat
Alpine
4 · High
Treeline
3 · Considerable
Below
No rating

Highlights

UPDATED THURSDAY AT 7:30 AM

Heavy snow will create touchy storm slabs at treeline and above.

Sheltered low-elevation terrain will likely offer the best and safest riding.

Avalanche problems

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely - Very Likely
    Size
    1–2.5

    Forecasted snow will likely create touchy slabs in steep terrain, especially on wind-loaded slopes. Avoid exposure to overhead avalanche terrain during periods of heavy loading from wind or snow.

Confidence

Moderate

Avalanche Summary

Field observations have been limited this week. With the incoming storm on Wednesday-Thursday, expect to see increasing avalanche activity.

If you make it into the backcountry, please submit your observations to the Mountain Information Network.

Snowpack Summary

Before the storm, 30 to 40 cm of surface snow was found in areas sheltered from the wind. Moderate to strong wind had likely formed deeper, more reactive deposits in leeward terrain. This settled snow covers old, firm, wind-affected or wind-scoured surfaces and may not stick well to the old surface. The midpack is generally strong and bridges the weak crystals at the base of the snowpack.

Weather Summary

Wednesday Night

Cloudy with 10 to 15 cm of new snow expected. 35 to 45 km/h southwest ridgetop wind. Treeline temperatures around -3 °C.

Thursday

Cloudy with 5 to 10 cm of new snow expected. 40 to 60 km/h southwest ridgetop wind. Treeline temperatures around -1 °C. Freezing level around 1200 m.

Friday

Cloudy with 10 to 15 cm expected late afternoon and overnight. 30 to 50 km/h south ridgetop wind. Treeline temperatures around -5 °C. Freezing level rising to 1200 m.

Saturday

Cloudy with isolated flurries. 50 to 60 km/h southwest ridgetop wind. Treeline temperatures around +2 °C. Freezing level rising to 1500 m by the end of the day.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
  • Recent new snow may be hiding windslabs that were easily visible before the snow fell.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

Regions covered