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Avalanche Forecast

Archived

Nov 23rd, 2013–Nov 24th, 2013

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

Regions

South Coast.

This forecast is based on very limited field data. Please feel free to send your observations to [email protected].

Confidence

Fair - Due to the number of field observations

Weather Forecast

Dry conditions and a mix of sun and cloud are expected for the forecast period as a ridge of high pressure becomes rooted over the south coast. Ridgetop winds should be moderate to strong from the west on Sunday becoming light on Monday and Tuesday. Freezing levels will hover at about 3000m on Sunday and Monday, dropping to about 2000m on Tuesday.

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

Information coming from this region has been extremely limited; however, reports suggest there is about 70cm of snow at 1600m in the Duffey Lake area and about 120cm at the same elevation on the Coquihalla. Terrain below treeline is reported to be mostly below threshold for avalanche activity.Modest storm accumulations from last week week have likely gained considerable strength and a daily melt-freeze cycle may be occurring on steep, solar aspects.A few crusts may exist deeper in the snowpack, although observers are not identifying them as layers of concern at this time.

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.