Avalanche Forecast

Archived

Apr 20th, 2016–Apr 21st, 2016

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Regions

Little Yoho.

High freezing levels and poor overnight recovery are expected until Saturday night.

Weather Forecast

Freezing level will start to drop slightly to 3500 m Thursday-Friday and does not drop significantly until Saturday night based on our weather models. Weather stations showing above freezing temperatures at 2900m.

Snowpack Summary

The snowpack is enduring repeated freeze/thaw cycles with very high overnight freezing levels the past few nights. Avalanche danger predominantly relates to temperature, sun affect and surface crust integrity under these conditions (spring).

Avalanche Summary

No avalanches observed or reported today however it is likely that afternoon loose/wet avalanches are a daily occurrence.

Confidence

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.