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Avalanche Forecast

Archived

Apr 3rd, 2024–Apr 4th, 2024

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

Regions

North Rockies, Sugarbowl, East Kakwa, McGregor, Pine Pass, Tumbler.

Watch for blowing snow forming new wind slabs in alpine and open treeline terrain.

Scale back your objective if you find signs of instability like shooting cracks or recent avalanches.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported.

If you are getting out in the backcountry, consider making a post on the MIN (Mountain Information Network).

Snowpack Summary

Strong winds have likely formed deeper, more reactive deposits on leeward terrain in the alpine and wind exposed treeline. 10 to 30 cm of recent snow sits on a hard, frozen crust except for north facing slopes above 2000 m, where it sits on old, dense, wind-affected snow.

Below 1500 m, moist surfaces will start to get crusty or covered by snow as the freezing level drops.

A layer of weak faceted snow above a hard crust that formed in early February is buried about 50 to 120 cm deep. This layer is generally getting stronger, and is shielded by crusts above it. It has not produced any recent avalanches.

Weather Summary

Wednesday Night

Partly cloudy. Light to moderate southwest ridgetop wind. Treeline temperature around -5 °C. Freezing dropping to sea level.

Thursday

Partly cloudy. Light to moderate west or southwest ridgetop wind. Treeline temperature around 0 °C. Freezing level around 1500 m.

Friday

Mostly sunny. No new snow expected. Light northeast ridgetop wind. Treeline high around 0 °C.

Saturday

Mostly sunny. No new snow expected. Light northeast ridgetop wind. Treeline high around 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Watch for unstable snow on specific terrain features, especially when the snow is moist or wet.

Problems

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.