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Archived

Avalanche Forecast

Nov 29th, 2024–Nov 30th, 2024
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
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Glacier.

Watch out for fresh wind slab in the alpine, winds are forecast to increase through the storm.

There is uncertainty in the forecast snowfall amounts. If you're finding more than 20cms of snow accumulation avalanche danger will be higher than forecast!

Confidence

Moderate

Avalanche Summary

Recent Loose dry avalanches have been observed in the Park. The steep North face of Mt Macdonald has been shedding some of the new snow, producing size 2's just reaching the top of run outs.

Rider triggered sluffing has been noted in recent MIN reports aswell.

Snowpack Summary

Light, fluffy new snow has buried a variety of old snow surfaces throughout the park. These include: wind effected snow in higher Alpine areas and settled storm snow in sheltered terrain.

The Nov 9 crust is down 50-100cm and unreactive in recent snowpack tests. The base of the snowpack is comprised of several dense, melt-freeze rain crusts formed in October.

Treeline snowpack depths average 110-130cm.

Weather Summary

Northwesterly weather flow will bring cold temps, flurries are forecast to continue through the weekend

Tonight: Flurries 6cms, Alp Low -11 °C. SW winds 30km/hr. Freezing Level (FZL): 600m

Sat: 6 cm. Alp High -8 °C. Light to Mod SW winds. FZL: 1000m

Sun: Mix of sun/cloud. Trace precip. Alp High -4 °C. Light SW winds. FZL: 100m

Mon: Cloudy with sunny periods. 0 cms new snow, Alp High -1 °C. Light W winds. FZL: 1300m

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

Avalanche Problems

Wind Slabs

Recent fresh snow has been blown around by Southerly winds. Look out for fresh windslab at ridge top or areas at treeline exposed to wind.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Loose Dry

New light snow has been sluffing fast in steep terrain. Pay attention in gully features or in places where you don't want to be pushed by your sluff.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Likely

Expected Size: 1 - 2