Archived

Avalanche Forecast

Mar 26th, 2019–Mar 27th, 2019

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

2: Moderate

The avalanche danger rating below treeline will be moderate

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

2: Moderate

The avalanche danger rating below treeline will be moderate

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

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Expect thin soft slabs in immediate lee alpine areas with today's snowfall.

Weather Forecast

Flurries with an accumulation of 8-15 cm today, accompanied by moderate winds from the SW. Freezing levels are forecast at 1600 m with an alpine high of -4C. The rest of the week looks like a mix of sun and cloud, no more precipitation, and freezing levels around 1800 m.

Snowpack Summary

Temperatures have dipped below 0 at treeline and above for the first time in a week. Expect to find a variable crust in the morning, which may break down into moist snow by the afternoon. Isothermal conditions exist below tree line. Cool dry snow exists on high Northerly aspects.

Avalanche Summary

The natural spring avalanche cycle has continued for over a week now, and produced numerous wet loose avalanches yesterday to sz 3 on primarily north aspects in the alpine and at treeline. Explosives control missions last week produced numerous avalanches on all aspects. A notable recent avalanche was a glide crack release in Mounds path. on Sunday

Confidence

Avalanche Problems

Loose Wet

New snow today will likely become moist at treeline and below.

Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.If triggered the loose wet sluffs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Persistent Slabs

On north aspects in the alpine a 40cm soft slab remains, and has bonded poorly to the underlying facets.

Avoid steep convexities or areas with a thin or variable snowpack.Pay attention to overhead hazards like cornices which could trigger the persistent slab.

Aspects: North, North East, North West.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 3