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

Regions

South Coast, North Shore, Sasquatch, Sky Pilot, Tetrahedron.

Seek out sheltered simple terrain for the best riding conditions. Storm snow on steep slopes and wind affected features may remain reactive to human triggers.

Confidence

Moderate

Avalanche Summary

No significant avalanches have been reported in the last few days however backcountry users should expect to see evidence of a natural avalanche cycle within the storm this weekend.

Please continue to post your reports and photos to the Mountain Information Network, the information is very helpful to forecasters.

Snowpack Summary

Expect up to 40 cm of storm snow at higher elevations by Sunday morning. At lower elevations this may have fallen as mixed precipitation or rain. Storm snow sits on a widespread melt-freeze crust. The crust varies in thickness from thick and supportive to thin and breakable. The middle and lower snowpack is strong and bonded.

Weather Summary

Saturday Night

Cloudy skies overnight with light accumulations expected, 5-10 cm. Freezing levels sit around 1000 m, with moderate southerly winds.

Sunday

Cloudy skies with flurries, up to 5cm of snow expected. Freezing levels sit around 1000-1500 m, with southerly winds easing to light northwesterlies.

Monday

Mostly cloudy skies. Moderate snowfall returns, up to 25 cm. Strong west/southwest winds. Freezing levels around 1500 m.

Tuesday

Cloudy. Heavy snowfall delivers over 50 cm, with strong southwest winds. Freezing levels around 1000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Don't be too cavalier with decision making, storm slabs may remain sensitive to human triggering.

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.