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Avalanche Forecast

Archived

Mar 3rd, 2026–Mar 4th, 2026

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

Regions

Spearhead.

6AM UPDATE: Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.

Avalanche Summary

No new avalanches have been reported at the time of publishing. We expect snowfall and wind continuing overnight to be forming fresh, reactive slabs.

Snowpack Summary

Up to 30 cm of new snow has fallen at upper elevations in the past 24 hours. Strong southerly winds will have redistributed this snow into deeper deposits in wind-loaded areas. 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

Tuesday Night

Cloudy. 10 to 20 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.

Wednesday

Cloudy. 1 to 8 cm of snow. 15 to 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.

Thursday

Mostly cloudy. 30 km/h west ridgetop wind. Treeline temperature -4 °C.

Friday

Mostly cloudy. 5 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • 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.
  • Even brief periods of direct sun could produce natural avalanches.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.