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Avalanche Forecast

Archived

Jan 2nd, 2024–Jan 3rd, 2024

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

Regions

South Coast Inland, Duffey, South Chilcotin, Stein, Taseko.

Retreat to mellower terrain if you see signs of instability like cracking around your skis, feet, or sled.

Small, reactive wind slabs may not be sticking well to a hard layer underneath.

Confidence

Moderate

Avalanche Summary

This MIN post has lots of great info on conditions east of Pemberton on Monday, including a small (size 1), human triggered avalanche below a ridgetop at 2100 m.

Saturday night, a few large (size 2) naturally triggered avalanches also occurred in this general area, with new snow sliding on a hard crust.

If you head into the backcountry, please consider submitting observations and/or photos on the Mountain Information Network.

Snowpack Summary

10-15 cm of settling snow may sit over a thin, frozen crust up to 2000 m.

Underneath, a mix of soft snow and heavily wind-affected snow overlies a thick crust and, in some sheltered areas, surface hoar. Professionals are still concerned about the reactivity of this layer, especially near thin and shallow rocky features.

Overall, the snow depth remains shallow, with average treeline snowpack depths between 80 and 120 cm.

Weather Summary

Tuesday Night

Cloudy. Isolated flurries/very light rain. Light south or southwest ridgetop wind. Treeline temperature around -2 °C. Freezing level around 1000 m.

Wednesday

Cloudy. No new snow expected. Light southwest ridgetop wind. Treeline temperature around -2 °C, freezing level rising to around 1500 m.

Thursday

Cloudy. Light snow expected above 750 m. Light southwest ridgetop wind. Treeline temperature around -4 °C.

Friday

Mostly cloudy. Light snow expected down to valley bottom. Light southwest ridgetop wind. Treeline temperature around -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Investigate the bond of the recent snow
  • Wind slabs may be poorly bonded to the underlying crust.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.

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.