Avalanche Forecast

Archived

Mar 17th, 2021–Mar 18th, 2021

Alpine

Natural avalanches unlikely.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely, human triggered possible.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Alpine

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Regions

Glacier.

Weather Forecast

Another warm sunny day at Rogers Pass, as a ridge of High-Pressure sits over southern BC. Today the freezing level will rise to ~2000m, winds will be light from the South, and the higher Alpine temperatures will reach -2. The weather pattern should hold until Thursday evening, when a warm front is forecasted to bring light precipitation.

Snowpack Summary

Spring melt freeze conditions exist at lower elev, and into the sub-alpine on S-SW asp. Dry snow may still be found on Northerly asp in the Alp, and isolated wind slabs at ridgetop. Isothermal snowpack can be observed at lower elevations on solar asp in the afternoon. At TL and above, on polar asp the mid, and lower snowpack is relatively strong.

Avalanche Summary

On Monday we had numerous avalanches up to size 3 in steep, rocky, solar facing terrain at lower elevations. Yesterday's activity decreased with a better refreeze on Monday evening; however, there were still a few large, destructive avalanches that occurred later in the afternoon on solar aspects.

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.