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Archived

Avalanche Forecast

Jan 15th, 2023–Jan 16th, 2023
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

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

There is likely a shift in the weather pattern starting later Monday afternoon and Tuesday (snow and wind on the way!?). In the meantime approach terrain exposed to the wind with caution. 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.

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.

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 through Monday, 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

Sunday Night

Mostly cloudy. Trace of new snow expected. Light south wind. Alpine temperature around -10°C.

Monday

Mostly cloudy with scattered flurries, accumulation 1-3cm. Light south wind picking up to moderate in the afternoon. Alpine temperature around -9°C.

Tuesday

Mostly cloudy with flurries, accumulation 5-10cm. Moderate to strong southerly wind. Alpine temperature around -10°C.

Wednesday

Mostly cloudy with isolated flurries. Light to moderate southwest wind. Alpine temperature around -10°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.

Avalanche Problems

Wind Slabs

There is lots of loose snow available for transport. An increase in wind could form reactive new wind slabs at ridgecrests and in leeward terrain features.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2