Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Feb 15th, 2013–Feb 16th, 2013
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
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

Regions: Jasper.

We may see 20cm of new snow on Saturday night. If we do, expect to see the avalanche danger increase.

Weather Forecast

Cooler temperatures and some new snow is expected for Saturday afternoon and evening.

Snowpack Summary

Hard wind slab is bridging the weak basal facets above treeline.  Limited whumpfing has been observed at treeline in the Parker Ridge area.  Very little new snow in the past few days.  Moderate SW winds continues to build pockets of thin windslab on lee aspects at treeline and above. The snowpack is weak and faceted below treeline.

Avalanche Summary

On Wednesday, several loose snow avalanches were observed along SE facing alpine ridge lines.

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Avalanche Problems

Wind Slabs

Wind and little new snow dominate the alpine landscape. On certain lee features this crust is thick enough to form a wind slab,  and it may be possible to trigger an avalanche on steep unsupported terrain from thin snowpack areas.
Avoid convexities or areas with a thin or variable snowpack.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Persistent Slabs

The snowpack in the alpine and at tree line consists of multiple wind laminated layers.  How the terrain has influenced the formation and character of these layers on a given slope is the main question to keep in mind while traveling.   

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1 - 3