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Archived

Avalanche Forecast

Apr 28th, 2014–Apr 29th, 2014
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Glacier.

Weather Forecast

Today, expect a mix of sun and cloud today with localized convective flurries and freezing levels to hover around 1700m with light winds. The overall weather pattern is for gradual clearing tonight as a high pressure ridge builds, freezing levels gradually rising to 2500m by Thursday.

Snowpack Summary

20cm of new snow over the last 4 days. Dry snow can still be found on due north aspects above 2000m. At tree line, moist snow exists in the top 50cm below a supportive melt freeze crust. Several crusts in the top meter of the snowpack. Glide crack slopes continue to open up and release with spring conditions.

Avalanche Summary

3 natural avalanches yesterday within the highway corridor all size 2.0.

Confidence

on Monday

Avalanche Problems

Loose Wet

Expect new snow to avalanche easily with any solar radiation that manages to get through the variable cloud cover.
Sluffs may trigger deeper instabilities.Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

Buried weak layers will continue to plague us until the snow is gone. These layers are most likely to release with strong solar radiation, warm temperatures, large triggers or when triggered from a shallow area.
Be aware of the potential for full depth avalanches due to deeply buried weak layers.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 3 - 4