Archived

Avalanche Forecast

Jan 21st, 2015–Jan 22nd, 2015

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

3: Considerable

The avalanche danger rating in the alpine will be considerable

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

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: Jasper.

Warm temperatures are expected on Friday and into the weekend. Expect some rain in the valley bottoms.

Weather Forecast

Winds are picking up from the southwest with warm temperatures expected by Friday. It will rain at lower elevations and snowfalls will vary with heavier snow down towards the icefields.

Snowpack Summary

A highly variable snowpack exists throughout the forecasting region. Moderate westerly ridge top winds are redistributing snow and creating wind slabs on north through east aspects. Maligne slabs are mostly clear. Roadside rock slabs have 10cm snow and have been snowballing.

Avalanche Summary

No avalanches observed in maligne and hwy 93

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Friday

Avalanche Problems

Wind Slabs

Moderate winds have redistributed snow creating wind slabs on lee aspects and cross loaded features.

Use caution in lee areas. Recent wind loading have created wind slabs.Be careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.

Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2