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Archived

Avalanche Forecast

Apr 9th, 2025–Apr 10th, 2025
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
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

Wind slabs at upper elevations may be reactive to rider triggering.

Rising freezing levels and brief periods of sun could trigger wet loose avalanches.

Confidence

Moderate

Avalanche Summary

No new avalanche reports received Tuesday.

Wind slabs may exist and be reactivce to rider triggering on north through east facing slopes just below ridgetop. With rising freezing levels, expect conditions to change rapidly, and natural wet loose avalanches or wet slabs are possible at treeline and below.

Snowpack Summary

Up to 20 cm of new snow may exist above 1600 m. This sits above a supportive crust that overlies wet snow. At elevations below 1500 m, the snowpack is isothermal to ground.

Weather Summary

Wednesday Night

Mostly clear with some cloud. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level falling to 1300 m.

Thursday

Cloudy with snow starting in the afternoon 5 to 10 cm. 50 to 70 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2500 m. Freezing level dropping to 1200 m overnight.

Friday

Mix of sun and cloud. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1800 m.

Saturday

Mix of sun and cloud with isolated flurries up to 5 cm. 15 gusting to 45 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • Be careful as you transition into wind-affected terrain.
  • Be alert to conditions that change with aspect and elevation.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Avalanche Problems

Wind Slabs

Wind slabs may exist at upper elevations on north through east aspects and could be reactive to rider triggering.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Wet

Rising freezing levels could initiate natural wet loose and possibly wet slab avalanches.

Aspects: All aspects.

Elevations: Treeline, Below Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5