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Avalanche Forecast

Archived

Mar 2nd, 2026–Mar 3rd, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Spearhead.

New snow and wind are forming fresh, reactive wind slabs.

Seek out sheltered, shaded terrain for the best and safest riding.

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.

Avalanche Summary

On Sunday, a few natural wind slabs (size 1-2) were observed in alpine terrain, some triggered by large cornice failures. Small (size 1) wet loose avalanches were observed from steep solar aspects with strong sun.

Looking forward to Tuesday, new snow and wind will build fresh wind slabs throughout the day.

Snowpack Summary

Up to 10 cm of new snow will arrive by Tuesday afternoon, accompanied by strong southerly winds. This new snow overlies a melt-freeze crust on solar aspects and lower elevations, wind-affected surfaces at higher elevations, and facetted snow or patchy surface hoar in sheltered, shaded areas.

A crust from early February can be found down 60 to 120 cm and has shown no recent reactivity.

The remaining snowpack appears to be well settled and bonded.

Weather Summary

Monday Night

Partly cloudy. 1 to 2 mm of precipitation as snow or rain at treeline. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1600 m.

Tuesday

Cloudy. 5 to 15 cm of snow at treeline. 40 to 70 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1500 m.

Wednesday

A mix of sun and cloud. Up to 5 cm of snow at treeline. 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1400 m.

Thursday

Mostly cloudy. 2 to 4 cm of snow at treeline. 30 km/h west ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.