Archived

Avalanche Forecast

Mar 31st, 2015–Apr 1st, 2015

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

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.

Weather Forecast

Cooling trend with further showers falling as snow over higher elevations and moderate westerly winds. Cornices on lee aspects will continue to grow with this loading pattern.

Snowpack Summary

The warming and cooling cycle has created a temperature crust on all aspects up to 2500m. Below this crust, a variety of layers exist with a weak basal facet layer being present in most areas at treeline and above. Any remaining snow on solar aspects below tree line has gone isothermal. Large cornices exist at ridge line.

Avalanche Summary

No new avalanches observed or reported in the forecast area today.

Confidence

Avalanche Problems

Wind Slabs

Windslabs can be found on lee aspects and cross loaded features at treeline and above.

Use caution in lee areas. Recent wind loading have created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Heavy rain at lower elevations has soaked any remaining snow left at below treeline elevations, thereby increasing the risk of loose wet slides. The cooling trend should help 'tighten' up the snow at this elevation over the next few days.

Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.

Give cornices a wide berth when travelling on or below ridges.Be aware of thin areas that may propogate to deeper instabilites.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3