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Avalanche Forecast

Archived

Jan 1st, 2013–Jan 2nd, 2013

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

Regions

South Rockies.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Wednesday: Light NW winds. Alpine temperature near 0, with a temperature inversion (colder in the valley). No precipitation.Thursday: Moderate SW winds. Alpine temperature near 0, with a temperature inversion (colder in the valley). Very light snow possible overnight.Friday: Light winds. Alpine temperature near -9. No precipitation.

Avalanche Summary

Small loose dry avalanches have been reported.

Snowpack Summary

Surface layers may become weak with solar radiation and forecast warming temperatures this week. A generally settled upper snowpack overlies two or more buried crusts. The December crust is found 70-140 cm below the surface and the November crust/facet layer is near the base of the snowpack. Recent snowpack tests have shown little reactivity on these layers, apart from in the Flathead Range near Fernie, where there is a lingering possibility of triggering a deep avalanche in specific thin, rocky snowpack areas. Check out the forecaster’s blogfor more discussion on this.

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.