Avalanche Forecast

Issued: Feb 22nd, 2018 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Persistent Slabs.

Parks Canada stephen holeczi, Parks Canada

Extensive wind effect can be found in open areas. We are slowly gaining confidence with the snowpack, but a cautious approach to terrain is important at higher elevations as large avalanches are still possible.

Summary

Weather Forecast

The arctic ridge starts to break down Friday over the area with increasing cloud but still cold conditions for Friday. Winds will increase to moderate/strong above 3000m but will stay light at valley bottom. Some light snow over the weekend with 10-15 cm at treeline by Sunday evening and slightly warmer (but not warm!) temperatures.

Snowpack Summary

The upper pack consists of storm snow from earlier in the month that is starting to settle and bond. This overlies a well settled mid-pack. The previously reported weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.

Avalanche Summary

No new avalanches reported or observed in Little Yoho in the last 48 hours.

Confidence

Problems

Persistent Slabs

An icon showing Persistent Slabs
In the deeper snowpack areas west of the divide the previously reported persistent weak layers within the mid-pack (Dec 15, Jan 6, and Jan 16 layers) are becoming stronger and only producing hard to no results with pit tests.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Unlikely

Expected Size

2 - 3.5

Valid until: Feb 23rd, 2018 4:00PM