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Avalanche Forecast

Archived

Mar 14th, 2026–Mar 15th, 2026

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

Regions

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

There are buried weak layers that continue to produce large avalanches.

Conservative terrain selection is the best way to manage uncertainty.

Confidence

Moderate

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

Avalanche Summary

Large (size 2 to 3) persistent slab avalanches continued on Friday. With remote triggers still occurring, up to 250 m away.

There were also many large storm slabs triggered with explosives north of Trout Lake.

Snowpack Summary

Storm snow since March 7 totals 60 to 100 cm around Revelstoke and 30 to 50 cm farther south. It has been redistributed by southwest winds in exposed higher elevation terrain and sits on old wind-affected surfaces at treeline and above or on a crust, which extends up to 1900 m near Highway 1, closer to 2200 m in the south.

Three problem layers of surface hoar, facets and/or crust formed in January and February are in the mid-snowpack, 1 to 2 m deep. They produced numerous destructive avalanches during the weekend warmup and sporadic releases in the days since, making them difficult to rule out, even as factors like a bridging crust at lower elevations have reduced the likelihood of triggering.

Weather Summary

Saturday Night
Mostly clear skies. 30 km/h northwest ridgetop wind. Treeline temperature -13 °C.

Sunday
Mix of sun and clouds. 1 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -12 °C.

Monday
Mostly cloudy. 15 to 35 cm of snow. 30 to 70 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 2000 m through the day.

Tuesday
Cloudy. 15 to 30 mm of rain at treeline. 60 to 80 km/h southwest ridgetop wind. Treeline temperature 1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the crust.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

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.

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.