Avalanche Forecast

Archived

Apr 18th, 2016–Apr 19th, 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 (3800m!) and poor overnight recovery are expected until Thursday. Time to get the mountain bike out of the garage.

Weather Forecast

Freezing level will climb to 3800m and remain there until Thursday based on our weather models. Little overnight recovery will occur if this becomes true.

Snowpack Summary

The snowpack is enduring repeated freeze/thaw cycles. The last few days the overnight freeze was substantial but this will change as of today. Avalanche danger predominantly relates to temperature 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.