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Avalanche Forecast

Archived

Mar 9th, 2024–Mar 10th, 2024

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

Regions

Haines Pass.

Choose terrain that is sheltered from the wind for the best riding and the lowest avalanche danger.

Rider triggered wind slab avalanches are likely in wind-loaded alpine terrain.

Confidence

Low

Avalanche Summary

Field observations have been non-existent in the last week due to the closure of the Haines road, which now appears to be open from Haines Junction to the Yukon/BC border as of Saturday morning.

If you make it into in the backcountry, please consider submitting 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 southeast through southwest 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

Saturday Night

Cloudy. 0 to 5 cm of snow expected. Light southwest ridgetop wind. Treeline low around -9°C.

Sunday

Cloudy. No new snow expected. Moderate southeast ridgetop wind. Treeline high around -6 °C.

Monday

Mostly cloudy. 5 to 7 cm of snow expected. Moderate to strong southeast ridgetop wind. Treeline high around -6 °C.

Tuesday

Mostly cloudy. 5 cm of snow expected. Strong southeast ridgetop wind. Treeline high around -4 °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.