Archived

Avalanche Forecast

Mar 9th, 2015–Mar 10th, 2015

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

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: Glacier.

Above freezing overnight temperatures at 1900m will have prevented the crust to fully recover. If the sun shines, any direct solar radiation today will increase the avalanche hazard on solar aspects.

Weather Forecast

A weakening high pressure ridge over the southern half of the interior will keep things mostly dry with increasing cloud for today. Freezing levels will reach between ~1700-2000m. Light flurries and/or rain can be expected later today. Alpine winds are not expected to relent much, they will be 50-60km/h from the west today.

Snowpack Summary

Firm crust below treeline at the surface softening with mild temperatures. Variable conditions higher up from wind deposited powder, to stiff wind slab, to bare crust. Reactive wind slab may exist at ridge crests. Recently buried surface hoar with variable distribution is down ~15cm. This sits just above the Feb 14 crust which is ~5-10cm thick.

Avalanche Summary

No new natural avalanches have been observed yesterday.

Confidence

Timing or intensity of solar radiation is uncertain

Avalanche Problems

Wind Slabs

Strong winds have formed touchy slabs. Small pockets have been reactive to skiers at or near ridge crests. Winds have come from all directions over the last week so lee slopes include all aspects.

Be cautious as you transition into wind affected terrain.Use caution in lee areas in the alpine. Recent wind loading have created wind slabs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2