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Avalanche Forecast

Archived

Mar 8th, 2021–Mar 9th, 2021

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

Regions

Glacier.

Keep an eye on the impact of solar radiation today! Manage your overhead exposure to solar slopes and cornices accordingly.

Weather Forecast

A weak ridge over the province will maintain sunny and dry conditions today in Glacier park.

Today:  Sunny with cloudy periods. Freezing level  1400m. Calm winds.

Tonight: Mainly cloudy. No snow. Freezing level at valley bottom. Calm winds.

Tuesday: A mix of sun and cloud with isolated flurries. Trace of snow. Wind SW15-35 km/h. Freezing level 1400m

Snowpack Summary

Up to 30cm of new snow sits atop a breakable crust and moist upper layers of snow up to treeline, and old wind affect in the alpine. The February facet/ crust persistent weak layer is down 80-120cm.

Avalanche Summary

No new avalanches observed yesterday. Warm temperatures with new snow overnight Friday created a moist avalanche cycle with several size 1.5-2.5 avalanches observed from steep north aspects in the alpine in the highway corridor.

Confidence

Timing or intensity of solar radiation is uncertain

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.