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Archived

Avalanche Forecast

Feb 22nd, 2023–Feb 23rd, 2023
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low

Wind slabs at upper elevations are the main concern. Keep an eye out for slabs forming on a variety of aspects.

Confidence

High

Avalanche Summary

There are no new avalanches to report in the past few days.

Snowpack Summary

New snow at upper elevations from early in the week has accumulated over a variety of old surfaces including wind slabs in the alpine and a breakable freezing rain crust between 1100 m and 1600 m.

The mid and lower snowpack is well-settled, strong, and consolidated.

Snowpack depths are reaching 250 cm at treeline.

Weather Summary

Wednesday Night

Cloudy with clear breaks. Light to moderate east and southeast wind. Treeline temperature -12 °C.

Thursday

Mix of sun and cloud. Moderate east wind. Treeline temperature -12 °C.

Friday

Mix of sun and cloud. Light northwest wind. Treeline temperature -8 °C.

Saturday

Mainly cloudy with flurries. Moderate southwest wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs are most reactive during their formation.

Avalanche Problems

Wind Slabs

Recent snowfall at upper elevations combined with wind switching direction is promoting the formation of new wind slabs on a variety of aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2