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Avalanche Forecast

Feb 9th, 2024–Feb 10th, 2024
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Tutshi, Wheaton, White Pass East, White Pass West, Yukon.

Update at 6:15 am PST: Wind slabs will be reactive to rider triggering today.

Choose sheltered, lower-angle terrain to enjoy some good turns.

Confidence

Moderate

Avalanche Summary

The Field Team was able to trigger a small pocket of wind slab on a steep slope on Thursday. Here's the full report.

Looking ahead, new snow and wind will likely form wind slabs in lee terrain features that will be reactive to rider triggering this weekend.

If you do go into the backcountry, consider submitting a MIN report.

Snowpack Summary

Strong southwesterly winds will redistribute 15 to 25 cm on Saturday, which will likely form reactive wind slab deposits.

These slabs may not bond well to the old snow surface, which in areas is firm surfaces from previous wind effects and warm temperatures, with a layer of weak, feathery crystals on top, as described by the Field Team here. In other areas, 10 - 20 cm of soft snow exists that may also be redistributed.

A hard melt-freeze crust is found 10 to 40 cm deep, up to 1500 m around White Pass, and 1200 m in the Wheaton Valley.

Weather Summary

Friday Night

Cloudy with 10 to 15 cm of snow. 50 to 70 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Saturday

Cloudy with 5 to 10 cm of snow. 60 to 80 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday

Cloudy with 5 to 10 cm of snow. 50 to 70 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Monday

Partly cloudy. 40 to 60 km/h west ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Be careful to keep storm day fever from luring you out into bigger terrain features.

Avalanche Problems

Wind Slabs

Southwest winds and new snow will form fresh and reactive wind slabs on lee terrain features.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2