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Avalanche Forecast

Archived

Mar 10th, 2019–Mar 11th, 2019

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
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

South Rockies.

Low danger isn't the same as no danger; use normal caution and standard safety practices.

Confidence

High - Timing, track, or intensity of incoming weather system is uncertain on Wednesday

Weather Forecast

SUNDAY NIGHT: No precipitation. Light west winds.MONDAY: Dry and sunny. Daytime treeline temperatures from -10 C and rising to -2 C. Moderate to strong westerly winds.TUESDAY: Cloudy and light snow developing. Daytime treeline temperatures starting around -10 and warming to just below 0 C. Light westerly winds.WEDNESDAY: 10 to 15 cm of new snow overnight Tuesday. Mix of sun and cloud. Temperatures a few degrees cooler with a light north or easterly wind.

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

Wind slabs remain in the Alpine and exposed treeline areas but are stubborn to trigger.Cold temperatures have transformed most of the snowpack into weaker faceted snow with few if any distinct layers, with the exception of alpine terrain where hard wind slabs and wind pressed snow are found near the surface.In deep snowpack areas, you may find a slab sitting above a layer of facets and surface hoar that was buried in mid-January and is now 30-60 cm deep. The layer is most prominent in the Elk Valley between 1600 m and 1900 m, but no recent avalanche activity has been reported on this layer.

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.