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Avalanche Forecast

Archived

Nov 26th, 2019–Nov 27th, 2019

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

Regions

South Coast Inland.

Strong northeast wind is forecast for Wednesday. Wind slabs in alpine terrain are the main concern.

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

TUESDAY NIGHT: Partly cloudy with isolated flurries, moderate northeast wind, alpine temperature -12 C, freezing level below valley bottom.

WEDNESDAY: Mostly clear skies, strong northeast wind, alpine temperature -15 C, freezing level below valley bottom.

THURSDAY: Clear skies, light northeast wind, alpine temperature -13 C, freezing level below valley bottom.

FRIDAY: Clear skies, light northeast wind, alpine temperature -10 C, freezing level below valley bottom.

Avalanche Summary

Observations are very limited right now, with recreationists just starting to get into the mountains and operations starting up. We haven't received any reports of recent avalanche activity. The most likely place to trigger an avalanche would be where the ground is smooth, such as on glaciers, rock slabs, scree slopes, or grassy slopes.

If you see anything while out in the field, please consider sharing that information with us and fellow recreationists via the Mountain Information Network (MIN).

Snowpack Summary

Strong northeast wind may blow around the recent snow at higher elevations. This snow will overly a hard melt-freeze crust or previously bare ground. Use particular caution where the snow surface appears smooth, as this may mean an avalanche could propagate over a wider area.

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.