Avalanche Forecast
Avalanche Bulletin - Jasper National Park
Enjoy the new snow and mild temperatures. Be aware for changing conditions mid-afternoon.
Avalanche Problem 1: Loose Wet
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.
- Use caution above cliffs where small avalanches may have severe consequences.
Avalanche Problem 2: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Fresh storm slabs may sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects, assess the bond at these interfaces carefully before committing to any avalanche start zones.
Travel and Terrain Advice
- Use caution in lee areas. Recent wind loading have created storm slabs.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Avalanche Summary
Numerous loose wet point release avalanches were observed in the Columbia Icefield area, primarily on steep solar aspects at treeline and below. These slides were generally in the size 1 - 1.5 range, with deeper accumulations noted in gully features. No slab avalanches were observed.
Snowpack Summary
10-15cm of fresh snow with light (gusting moderate) Northerly winds has created fresh storm slabs in exposed areas. Incoming snow is falling on a melt-freeze crust on solar aspects below 3000m and old facetted wind slabs on polar aspects above 1700m. The weak Feb. 8th interface under the old windslabs remains a concern on high north aspects.
Weather Forecast
Mild temperatures and light variable winds expected through the weekend, with up to 10cm of new snow expected. Freezing levels to remain below treeline (2100m).
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Expect the new snow to shed from steep rocky terrain.