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Archived

Avalanche Forecast

Mar 17th, 2021–Mar 18th, 2021
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be 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

Avalanche Problems

Loose Wet

This week we have observed several large avalanches in steep, rocky, S-SW facing terrain. While these avalanches were primarily loose wet in nature, some slabs, and even glide slabs were witnessed.

  • Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
  • Cornices have been falling naturally in recent days. Give them a wide berth especially in the PM.

Aspects: South East, South, South West, West.

Elevations: Treeline, Below Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5