Avalanche Forecast
Issued: Feb 4th, 2017 5:14PM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
Saturday night: 20-25 cm new snow / Moderate to strong, southwest winds / Freezing level sea level.Sunday: 0-5 cm new snow / Moderate, southwest winds/ Freezing level sea level.Monday: Mostly cloudy with flurries / Light to moderate, southwest winds / Freezing level sea level.Tuesday: Mix of sun and cloud / Light, southwest winds/ Freezing level sea level.
Avalanche Summary
New storm slabs will likely have a poor bond to the old snow surfaces and be reactive to human triggers, especially on leeward slopes that are more wind loaded. In thin areas to the north, storm slabs could potentially step-down to deeper weak layers.
Snowpack Summary
15-25 cm of new snow has buried a wide variety of old snow surfaces including stiff wind slab or wind effected snow at upper elevations, sun crust on steep southerly slopes, surface hoar and surface facets in sheltered locations. An additional 20-25 cm of new snow is expected by Sunday morning, bringing storm totals up to 35-50 cm(lower amounts in the north). The mid-January surface hoar and facet interface is now buried 50-80 cm and the mid-December facets down 90-120 cm remain a concern especially in shallower snowpack areas like the Duffey, Hurley and/ or South Chilcotins. These deeper weaknesses warrant monitoring especially through periods of more load. In southern areas (Coquihalla), the lower snowpack is reportedly well settled(stronger), than it is to the north.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 5th, 2017 2:00PM