Avalanche Forecast

Issued: Mar 6th, 2015 4:00PM

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

tim mcallister, Parks Canada

Jasper.

Summary

Weather Forecast

Cloudy with a chance of flurries overnight and into tomorrow morning, then clearing for the weekend. The long range forecast is indicating warmer temps and higher freezing levels.

Snowpack Summary

A supportive mid pack consisting of rounded and facetted layers is bridging the weak depth hoar/facet layers that make up the lower snowpack. Some wind slabs are developing in sheltered alpine locations.

Avalanche Summary

Field teams skiing in the Hilda /Parker zones reported no new avalanches.

Confidence

Freezing levels are uncertain on Monday

Problems

Wind Slabs

Strong winds are redistributing snow into slabs on sheltered aspects and cross loaded features in the alpine.

Use caution in lee areas. Recent wind loading have created wind slabs.Be cautious as you transition into wind affected terrain.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Deep Persistent Slabs

Natural and human triggering is unlikely but it is still a good practice to avoid steep, open, rocky slopes with a shallow snowpack.

Caution around convexities or areas with a thin or variable snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Valid until: Mar 7th, 2015 4:00PM