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Avalanche Forecast

Archived

Jan 13th, 2023–Jan 14th, 2023

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Terrain exposed to the wind should be approached with caution. If you find soft, loose snow, enjoy the good riding:) If you find dense, slabby snow, or see shooting cracks, expect that windslab avalanches will be easy to trigger.

Confidence

Moderate

Avalanche Summary

No new avalanches reported before 4 pm on Friday.

We expect that windslab avalanches are likely to occur under the weight of a rider anywhere that winds over 25 km/h are are forming the loose surface snow into slabs.

Avalanche reports from earlier in the week were limited to moderately sized windslab avalanches on east and north facing terrain.

Snowpack Summary

Soft, loose surface snow has been relatively unaffected by wind, even in usually windy areas.

Low visibility has limited field observations at higher elevations, but we suspect that you may find reactive windslabs and/or cornices below ridgecrests and in the highest alpine terrain.

The wind is forecasted to be fairly light to mountain top for the next few days, but if you do see wind transport where you are, then expect to also find reactive windslabs.

Snow depths at White Pass are around 100 cm in sheltered areas and 200 cm on wind-loaded slopes.

Weather Summary

Friday Night

Mostly cloudy. No new snow expected. Light southwest wind. Treeline temperature around -10°C. Possible temperature inversion might mean alpine temperatures are closer to -5°C.

Saturday

Mostly cloudy. No new snow expected. Light southerly wind. Treeline temperature around -10°C. Possible temperature inversion might mean alpine temperatures are closer to -5°C.

Sunday

Mostly cloudy. Trace of new snow expected. Moderate southeast wind. Alpine temperature around -7°C.

Monday

Mostly cloudy. Trace of new snow expected. Light to moderate southeast wind. Alpine temperature around -8°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for signs of slab formation throughout the day.
  • Wind slabs are most reactive during their formation.

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.