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Avalanche Forecast

Archived

Apr 19th, 2022–Apr 20th, 2022

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

Unfortunately the forecasted snowfall amount have dropped but enough new snow has fallen to freshen up the skiing!

Moderate SW wind is building wind slab in the Alpine and in exposed features at tree line. 

Weather Forecast

Parkers Ridge area: Wednesday- Cloudy with sunny periods & isolated flurries. Trace precipitation. SE wind 1-20km/h Freezing level 1600m

Thursday- Cloudy with sunny periods & isolated flurries. Trace precipitation. Light-15 km/h Wind. Freezing level 2100m

Friday- Mostly cloudy. Light Wind. Freezing level 2200m

Additional info @ Avalanche Canada MWF 

Snowpack Summary

5-10cm of new snow sits over previously wind effected surface or sun/temperature crusts. Moderate Wind transport with 20-40km/h SW wind is developing a more widespread wind slab problem in the Alpine and in exposed features at tree line. A variety of crusts are present in upper snowpack at all elevations but mid snowpack is well consolidated.

Avalanche Summary

No new avalanche activity observed on the Icefields Parkway today with limited visibility. Please consider submitting a MIN report if you observe any new activity.

Confidence

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.