Avalanche Forecast

Issued: Apr 5th, 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.

a.l. horton, Parks Canada

Jasper.

The forecast is calling for light snow. This should make for great dust on crust conditions (if it materializes).

Summary

Weather Forecast

Light accumulations of snow over Sunday night and Monday with light Easterly winds. Things change on Tuesday when a strong ridge brings clear and warm conditions. Cool nights will create a spring snowpack with a strong temperature crust in the morning that may breakdown with increasing day time heating and solar radiation.

Snowpack Summary

Pockets of wind pressed and soft wind slabs near ridgelines on Northerly aspects at alpine and treeline elevations. Suncrust on solar aspects. 5-10 cm over a supportive temperature crust can be found on all aspects tree line and above to 2500m. The weak basal facet layer is bridged by a strong mid-pack in most areas at treeline and above.

Avalanche Summary

No new avalanche observations.

Confidence

Due to the number and quality of field observations on Monday

Problems

Wind Slabs

Pockets of wind pressed snow and 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

Valid until: Apr 6th, 2015 4:00PM