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Avalanche Forecast

Archived

Jan 4th, 2026–Jan 5th, 2026

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

Regions

Manning.

Convective snowfall will affect the region, with locally high snowfall amounts possible.

Dial back terrain choices if more than 25 cm of new snow accumulates.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

No new avalanches were reported, but observations remain limited.

Snow pinwheels were observed on steep treeline features on Saturday due to rain and warm temperatures near Iago Peak.

If you are heading into the backcountry, please consider sharing your observations via the Mountain Information Network.

Snowpack Summary

Up to 15 cm of wet snow is found at treeline and above, while rain has saturated the snowpack at lower elevations.

This overlies a variety of surfaces, including a crust on south-facing aspects and wind-affected snow on north-facing terrain.

The mid-December crust is 150 to 250 cm deep. This crust is 30 cm thick and well-bonded to the snow above.

In general, the snowpack is well settled and right-side up.

Weather Summary

Sunday Night

Cloudy. 10 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Monday

Cloudy. Up to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Tuesday

Cloudy. 25 to 40 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Wednesday

Cloudy. 5 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Make observations and continually assess conditions as you travel.
  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.

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.