Archived

Avalanche Forecast

Mar 5th, 2013–Mar 6th, 2013

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

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

Regions: Northwest Inland.

Confidence

Fair - Due to limited field observations for the entire period

Weather Forecast

Overnight and Wednesday: Cool, sunny and dry with light Southeast winds. Freezing level rising to about 600 metres during the day.Thursday: Continued cool and dry with overnight lows down to about -6.0 and daytime freezing levels rising to about 600 metres. Light Southwest winds are expected during the day.Friday: More dry sunny weather is expected.

Avalanche Summary

No new avalanches have been reported from the region.

Snowpack Summary

The West of the region is reporting new surface hoar growth from 5-15 mm. The recent storm snow continues to settle and has been covered by a dusting of new snow in areas that received some convective snow showers. Foot penetration has been reported to be about 40 cms in the deeper snowpack areas of the region. The East parts of the region have reported a shallow weak snowpack with areas of basal facets. Strong southwest winds have formed touchy wind slabs in exposed terrain in the lee of ridges, gully side walls, and behind terrain features. There are a variety of old interfaces now down 60 - 100cm which include facets, crusts and isolated pockets of surface hoar.

Avalanche Problems

Wind Slabs

Recent wind slabs are becoming more stubborn to human triggers, but may release with larger triggers like re-grouping or multiple people on the same slope. Watch for unsupported convex slopes, and shallow weak spots around exposed rocks and trees.

Be cautious as you transition into wind affected terrain.>Stay well to the windward side of corniced ridges.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 4