Archived

Avalanche Forecast

Dec 10th, 2017–Dec 11th, 2017

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

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: Jasper.

Be extra cautious on steep solar aspects during the heat of the day. Pay attention to signs that upper snowpack is weakening (snowballing, moist or wet snow especially around rocky areas, water running over rocks etc.).

Weather Forecast

Temperatures will rise through the night on Sunday as the freezing level climbs to 3400m by mid-day on Monday.Â Winds will ease to Light Westerly and skies will be clear.Â Temperatures and freezing level will drop on Tuesday with similar weather expected on Wednesday.

Snowpack Summary

Melt freeze crust on steep solar aspects treeline and above. There is a well settled snowpack in most locations. A 30 - 70 cm thick slab overlies a crust and bonding appears to be strengthening at this interface. The Halloween Oct 31 crust sits near the bottom of the snowpack from treeline to 2700 m.

Avalanche Summary

No patrol occurred on Sunday. No avalanches reported.

Confidence

on Monday

Avalanche Problems

Deep Persistent Slabs

Solar triggering is possible on steep south facing slopes.

Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 3