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Avalanche Forecast

Archived

Mar 27th, 2022–Mar 28th, 2022

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

Regions

Glacier.

New snow / rain, a high freezing level, little to no overnight crust recovery and winds will keep the hazard elevated. Expect wet avalanches at lower elevations.

Weather Forecast

Monday will see cloudy skies with flurries, 5-10cm of snow at higher elevations and rain at lower elevations as the freezing level will linger around 2200m. Winds will be 15-25km/hr from the South West. A ridge of high pressure arrives on Tuesday bringing sunny skies and a slight drop in temperatures.

Snowpack Summary

10-15cm of new snow above 1900m. A buried crust exists up to 2200m on all aspects (which is likely rain saturated) and extends into the alpine on solar aspects. Pockets of wind slab in the alpine and into tree line. The March 11th crust is buried 40-70cm. Cold, dry powder snow can be found on sheltered aspects at higher elevations.

Avalanche Summary

Several wet avalanches size 1.5-2.5 released on Saturday during the rain and warming event.

On Thursday Park One Minor (low elevation path on the West end of the park) filled the creek, jumped the bank and buried both lanes of the TCH a meter deep by 20m wide.

Glide cracks are on the move, show them respect during the rain and warm temps.

Confidence

Problems

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.

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.