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Archived

Avalanche Forecast

Feb 19th, 2025–Feb 20th, 2025
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

New snow and moderate winds may add to existing wind slab problems. Warming temperatures may increase their sensitivity to triggering.

Confidence

Moderate

Avalanche Summary

At the time of publishing, no new avalanches were reported in the past 7 days.

Snowpack Summary

An average of 10 cm of recent storm snow, has fallen with variable wind, potentially forming wind slab on all aspects. In sheltered terrain this new snow may overlie soft, faceted snow or surface hoar. In exposed terrain it will overlie a sun crust or firm wind-affected snow.

In the Manning park area there has been less snow and significantly less wind.

At lower elevations a new crust is on or near the surface.

A weak layer from late January, buried 40 to 60 cm deep, is a hard crust in many areas but consists of facets or surface hoar on sheltered upper-elevation slopes.

A crust from December is buried 80 to 140 cm deep, with facets around it in shallow snowpack areas. Otherwise, the lower snowpack is strong and bonded.

Weather Summary

Wednesday Night

Cloudy with up to 5 to 15 mm of mixed precipitation. 30 to 50 km/h southwest ridgetop wind. Freezing level falling to 1000 m.

Thursday

Cloudy with up to 10 mm of mixed precipitation. 20 to 40 km/h southwest ridgetop wind. Freezing level rising 1300 m.

Friday

Cloudy with up to 5 mm of mixed precipitation. 30 to 50 km/h southwest ridgetop wind. Freezing level 1800 m.

Saturday

Cloudy with up to 10 mm of mixed precipitation. 40 to 60 km/h southwest ridgetop wind. Freezing level 2200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Closely monitor how the new snow is bonding to the old surface.
  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.

Avalanche Problems

Wind Slabs

Newly formed wind slabs could be found in exposed terrain on all aspects due to variable wind over the past few days. These slabs may be sensitive to rider traffic due to the weak layers underneath.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5