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Avalanche Forecast

Archived

Feb 13th, 2026–Feb 14th, 2026

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

Regions

Glacier.

Incoming new snow and wind will continue to build windslabs.

Keep the persistent slab problem on your mind at treeline and below - be especially cautious if you are exploring areas that don't see regular traffic.

Confidence

Moderate

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

Avalanche Summary

On Friday, a field team remotely triggered a size 1.5 avalanche on the Jan 26th surface hoar layer, in infrequently travelled terrain below the Avalanche Glacier (Beaver valley), and also experienced multiple whumpfs. Another field team in Avalanche basin also experienced multiple whumpfs in open terrain at 1800m.

There were MIN reports on Wednesday of triggering the persistent week layer in the Ross Pillows, as well as thin slabs on the Asulkan glacier.

Snowpack Summary

Another 5 cm of new snow will bring recent snowfall totals to 25-40cm. Gusty alpine winds continue to build fresh windslabs in exposed terrain.

There are several crusts in the upper snowpack from the springlike temps and sunshine we've had in the past 2 weeks.

The Jan 26th layer of surface hoar, facets, and a crust, is buried down 35-65cm. The largest surface hoar is preserved in sheltered areas below treeline.

The mid and lower snowpack is generally well settled/strong.

Weather Summary

A trough off the coast pushes unsettled weather inland, giving mostly cloudy skies and snow flurries.

Tonight: Flurries (~5cm). Alpine low -7°C. Moderate Southwest ridgetop winds.

Sat: Isolated flurries/sunny periods. High -6 °C. Freezing level (FZL) valley bottom. Gusty moderate SW wind.

Sun: Sunny periods. Low -12 °C, High -10 °C. Light SW wind.

Mon: Sunny periods. Low -10 °C, High -6 °C. Light SW wind.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.

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.