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Avalanche Forecast

Archived

Mar 4th, 2023–Mar 5th, 2023

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

Regions

Crowsnest North, Crowsnest South.

Continually assess the wind effect and new snow amounts as you move through terrain. Wind and storm slabs will likely remain reactive to rider traffic.

Confidence

Moderate

Avalanche Summary

Ski cutting continues to produce small wind slabs and dry loose avalanches.

No other significant avalanches reported in the past week.

Snowpack Summary

Up to 40 cm of new snow has fallen past 48 hours. At treeline and above this new snow has been redistributed into wind slabs on north and east aspects. As the winds change direction previously wind scoured slopes could become reloaded. In sheltered terrain soft snow can still be found. A new crust could be found on south facing terrain.

Check out this MIN from our field team with some great weather and snowpack observations.

A melt-freeze crust with facets above, sits 50 to 120 cm deep. It has not produced any avalanches in the past couple weeks.

The mid to lower snowpack is considered well bonded at this point. Currently we are not seeing the same basal weak layers and reactivity that many of the neighboring regions are experiencing this season.

Weather Summary

Saturday Night

Mostly cloudy with up to 5cm of new snow expected. Moderate to strong southeast winds and a low of -15°C at 2000 m.

Sunday

Mostly cloudy with up to 5cm of new snow expected. Strong easterly winds and a high of -13°C at 2000 m.

Monday

A mix of sun and cloud with the possibility of light flurries bringing trace amounts of new snow. Moderate southeast winds shifting to light southwest in the afternoon. High of -11°C at 2000 m.

Tuesday

Mostly sunny with no new snow expected. Light southwest winds and a high of -8°C at 2000 m.

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.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

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.