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Avalanche Forecast

Archived

Mar 1st, 2026–Mar 2nd, 2026

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

Regions

South Columbia, Esplanade, Jordan, North Monashee, North Selkirk, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, Retallack.

It will be difficult to find ways to test slopes without serious risk.

Signs of instability may not be obvious until it's too late, and choosing flat or gentle terrain is your best defense.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.
  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

On Saturday, numerous large to very large naturally triggered persistent slab avalanches continued to be reported.

Also, South of Highway 1, several large (up to size 2), remote human triggered avalanches were reported at treeline and below. This indicates a weak snowpack that is likely to produce surprisingly large avalanches, even in relatively mellow terrain.

Multiple climax avalanche events were reported in the neighboring region.

Snowpack Summary

50 to 90 cm of recent storm snow overlies a complex snowpack.

Three persistent weak layers of concern are found in the upper 180 cm of the snowpack:

  • 60 to 70 cm down is a layer of surface hoar in sheltered areas, or a melt-freeze crust on sun-exposed slopes from mid-February.

  • 90 to 120 cm down is the early-February layer of surface hoar in wind-sheltered terrain and a crust on sun-exposed slopes.

  • 110 to 140 cm down is the late-January layer of surface hoar and facets over a melt-freeze crust.

All of these persistent layers have continued to produce large avalanches.

The remainder of the snowpack below is well consolidated.

Weather Summary

Sunday Night

Clear skies. 25-55 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1750 m.

Monday

Mostly sunny. 25-55 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1900 m.

Tuesday

Mix of sun and clouds. 3 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Wednesday

Mostly cloudy. 10 to 30 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C.



More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • It's critical to stay disciplined and stick to gentle, low consequence terrain.
  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Avoid exposure to overhead hazards when solar radiation is strong.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.

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.