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Archived

Avalanche Forecast

Mar 26th, 2021–Mar 27th, 2021
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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

Regions: Little Yoho.

We expect an increase in the hazard starting Saturday and peaking Sunday. This increase will vary from region to region on Saturday. Watch locally for these changes when deciding about terrain, and how much risk you want to accept.

Weather Forecast

Cloudy skies on Saturday with 5-10cm expected in the region by the end of the day. Alpine winds will increase to 50-60km/h from the W/NW Saturday AM and continue strong into Sunday. An additional 10-20cm is expected Sunday, with potential rain at lower elevations as valley bottom temps will stay above freezing Sat night.

Snowpack Summary

15-40 cm of snow has fallen within the last week with variable SW-NW winds. This new snow sits over a sun crust (up to ridge tops) on solar aspects, over a temperature crust at lower elevations and over a mix of surfaces on North aspects including facets and spotty surface hoar.

Avalanche Summary

Limited observations in Little Yoho today. No avalanches observed and reported.

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Wind Slabs

Watch for wind slab development in the alpine and exposed treeline areas as the winds are forecasted to increase on Saturday with plenty of dry, loose snow for transport.

  • Be careful with wind loaded pockets, especially in steep confined alpine terrain.
  • Use caution in lee areas. Wind loading could create slabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Dry

With increased winds and lots of dry, loose snow, expect this problem to increase in higher alpine terrain over the course of the day.

  • Be careful of loose dry power sluffing in steep, confined or exposed terrain.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5