Archived

Avalanche Forecast

Nov 12th, 2019–Nov 13th, 2019

Alpine

1: Low

The avalanche danger rating in the alpine will be low

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

1: Low

The avalanche danger rating in the alpine will be low

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: Banff Yoho Kootenay.

Many early season hazards exist, related to thin snowpack coverage. Be on the lookout for windslabs in lee areas in the alpine.

Weather Forecast

A generally benign weather pattern will set in for the next couple of days. Cloudy with little precipitation with seasonal temps. Wind increasing throughout Thursday to strong velocity from the SW. A few cm's could possibly arrive on Friday that could bump up the hazard rating slightly.

Snowpack Summary

10-20 cm of recent storm snow sits over the November 8 crust and a variety of old wind slabs in the alpine. The Nov 8 crust is present up to 2400 m. Faceting observed around the Oct crusts near the ground. Treeline snow depths range from 50-80 cm, and up to 110 cm in lee areas.

Avalanche Summary

No avalanches observed or reported on Tuesday.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Friday

Avalanche Problems

Wind Slabs

Watch for lingering windslabs in lee areas in the alpine.

Use caution in lee areas. Wind loading could create slabs.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2