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Archived

Avalanche Forecast

Jan 10th, 2017–Jan 11th, 2017
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
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.

Overnight winds may have created reactive windslabs in alpine and tree-line lee features. Use caution when entering the top of your line.

Weather Forecast

We are back into the cold weather today, with mainly sunny skies and an alpine high of -20*C. Winds should drop to light northerlies. For Wed/Thursday, temp's should warm a few degrees and the sunshine will continue with light north winds. No snow is in the forecast until possibly the weekend.

Snowpack Summary

10-15cm of low density snow fell in the last 36hrs. Overnight SW winds will have created windslabs along the lee of alpine ridges. This sits on a variety of old surfaces, from hard windslab, to breakable crust, to faceted soft snow in protected areas. Field snowpack tests are producing mod-hard resistant planar results in the upper 50-70cm.

Avalanche Summary

Numerous loose and storm slab avalanches were observed yesterday from Mt Macdonald and Mt Tupper, all originating from steep, unskiable terrain. No new avalanches have been observed by our field crews in the backcountry over the last couple of days.

Confidence

Avalanche Problems

Wind Slabs

Overnight winds will have whipped the new snow around and created reactive soft slabs in alpine and tree-line lee features. These new slabs sit on old, widespread windslabs, which hide spotty surface hoar.
Use caution in lee areas. Recent wind loading have created wind slabs.Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3