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Avalanche Forecast

Archived

Mar 10th, 2024–Mar 11th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Haines Pass.

Avoid steep wind-loaded features, rider-triggered avalanches remain likely in leeward terrain.

Confidence

Low

Avalanche Summary

Field observations have been non-existent in the last week due to periodic closures of the Haines road.

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

Snowpack Summary

Expect 30 to 40 cm of soft snow on the surface in areas sheltered from the wind. Moderate to strong easterly and southerly wind has likely formed deeper, more reactive deposits in leeward terrain. The recent snow covers old, firm, wind-affected or wind-scoured surfaces.

The midpack is generally strong and bridges the weak crystals at the base of the snowpack.

Weather Summary

Sunday Night

Cloudy, with 2 cm of snow expected. 30 to 40 km/h southeast ridgetop wind. Treeline temperatures around -6 °C.

Monday

Cloudy, with 1 to 2 cm of snow expected. 30 to 40 km/h southeast ridgetop wind. Treeline temperatures around -5 °C.

Tuesday

Mostly cloudy, with 2 to 6 cm of snow expected. 30 to 50 km/h east ridgetop wind. Treeline temperatures around -1 °C.

Wednesday

Mostly cloudy, with 1 cm of new snow expected. 30 to 40 km/h south ridgetop wind. Treeline temperatures around -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind affected terrain.
  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.