Archived

Avalanche Forecast

Mar 7th, 2015–Mar 8th, 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

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

Regions: Glacier.

Strong winds have created touchy slabs near ridge line that are reactive to skiers.

Weather Forecast

Mostly cloudy with trace amounts of precipitation throughout the day. Freezing levels are expected to rise to 1700m this afternoon, with an alpine temperature of -2 and westerly winds gusting to 40km/h. The high pressure holding pattern continues to dominate, at least until early next week.

Snowpack Summary

A bulletproof crust below treeline makes for challenging up-tracks. In open areas, wind has created variable conditions ranging from wind deposited powder, to breakable crust, to boiler plate ice. Pockets of touchy wind slab up to 20cm deep exist near ridge line. Wind slabs overlie a crust on S aspects.

Avalanche Summary

Yesterday, a field team on Ursus Minor observed several whumphs and shooting cracks up to 20m wide and 10-20cm deep in steep wind loaded areas. No new natural avalanches have been observed recently.

Confidence

Avalanche Problems

Wind Slabs

Strong winds continue to form touchy slabs. Small pockets of wind slab have been reactive to skiers. On south aspects, wind slabs overlie a crust. Caution should be used in steep and exposed terrain where a small slab could result in a big fall.

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