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Archived

Avalanche Forecast

Mar 11th, 2020–Mar 12th, 2020
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
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.

Great skiing can be found through the forecast region.  Keep the avalanche problems in mind while traveling in the backcountry.

Weather Forecast

Mix of sun and cloud Thursday with temperatures near 0 degrees at valley bottom. Winds will remain in the light to moderate range at upper elevations. A cooling trend will start this weekend as temperatures are forecasted to drop near -25 on Saturday.

Snowpack Summary

10-15cm of snow Wednesday night has been transported by moderate winds at upper elevations creating wind slabs on immediate lee slopes. On steep solar a thin crust has formed on the surface. The deep snowpack of Little Yoho is generally quite strong with few weaknesses.

Avalanche Summary

Ski hills reported reactive wind slabs on lee slopes at upper elevations. No new natural avalanches observed.

Confidence

Avalanche Problems

Wind Slabs

Additional snow and wind overnight on Tuesday has created localized windslabs that can be triggered by humans but seems unlikely to release naturally in the absence of a trigger. Careful route finding to get off ridges and onto smooth slopes.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2