Avalanche Forecast

Issued: Apr 16th, 2015 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs and Cornices.

tim mcallister, Parks Canada

Jasper.

High winds continue to rake the alpine from the west making travel feel more like winter. Heads up for windslabs on lee features.

Summary

Weather Forecast

Mix of sun and cloud Friday with a chance of showers in the afternoon. Moderate winds from the west will make it feel cooler. Stronger winds in the alpine to 50km. Clearing for the weekend and back to seasonal norms.

Snowpack Summary

Strong Southwesterly winds have created pockets of windslab and obliterated exposed areas at upper elevations. Weak basal facets are bridged by a strong mid-pack in most areas at treeline and above.

Avalanche Summary

Natural cornice failures continue and many more are waiting their turn to fall.

Confidence

The weather pattern is stable on Saturday

Problems

Wind Slabs

Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.

Use caution in lee areas. Recent wind loading have created wind slabs.Avoid cross loaded slopes at or above treeline.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Cornices

Natural cornice failures are being observed daily. Many more are waiting their turn to drop in...

Extra caution needed around cornices with current conditions.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Apr 17th, 2015 4:00PM