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Avalanche Forecast

Archived

Feb 4th, 2023–Feb 5th, 2023

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

Regions

Vancouver Island, East Island, North Island, South Island, West Island.

Give the storm snow time to bond before stepping out. Storm slabs will likely remain reactive to rider traffic.

Confidence

Moderate

Avalanche Summary

We suspect a natural storm slab cycle may have taken place at the peak of the storm Friday night.

Snowpack Summary

Up to 60cm of new snow has accumulated above 700m with extreme southerly wind impacting open terrain. This snow has fallen above a melt-freeze crust, and observations from the past few days suggest the snow may bond poorly to this crust. The crust is up to 10 cm thick at lower elevations and tapers down to 1 cm thick on shaded or high elevation terrain. Below this crust, the snowpack is generally strong and bonded.

Check out this MIN from our field team to learn more.

Weather Summary

Saturday Night

Cloudy with up to 10cm of new snow expected at higher elevations. Moderate to strong southeast winds and freezing levels falling to 1100m.

Sunday

Cloudy with around 5cm of new snow expected at higher elevations. Light westerly winds and freezing levels rising to 1400m.

Monday

Cloudy with 5 to 40cm of new snow expected at higher elevations. Greatest snowfall amounts expected on west side of island. Moderate southwest winds and freezing levels rising to 1500m.

Tuesday

Cloudy with 5 to 90cm of new snow expected at higher elevations. Greatest snowfall amounts expected on west side of island. Moderate to strong southwest winds and freezing levels rising to 1300m.

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.
  • Closely monitor how the new snow is bonding to the crust.
  • Be carefull around freshly wind loaded features.

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.