D
Duke
Well-known member
Check the report before heading out and read the text. Be safe 
http://www.avalanche.ca/CAC_Bulletin_Forecast?RegionID=3
Primary Concerns:
Travel Advisory Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
Conditions are deteriorating rapidly, as soft slabs build in response to the new storm snow and wind. I would be very nervous of entering avalanche terrain at this time. If you choose to proceed, proceed with the attitude that you will turn back at the slightest sign of instability, like seeing other recent avalanches, feeling whumpfs, or seeing cracking in the snow surface. Safe travel in the mountains at this time relies on avoiding steep, open or lightly treed slopes, convex rolls, and shallow spots where avalanches could be easily triggered. Instead, keep slope angles low and avoid steep open areas. The presence of persistent weak layers (PWLs) in the snowpack means that avalanches may run full path, so stay well away from runout zones and watch for the possibility for avalanches hitting you from above. The weak and complicated lower snowpack is such that the instabilities may persist for some time. Allow yourself wide margins of safety at this time.
Avalanche Activity Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
In areas that saw higher snowfalls, conditions deteriorated rapidly on Sunday morning and avalanches could be triggered at elevations as low as 1500m, in some cases impacting areas that are not usually considered to be a threat. Avalanches are pulling out into the weak lower snowpack and in some cases scouring to the ground.
Snowpack Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
About 30-50cm of new snow overlies a complicated and highly variable lower snowpack. Buried windslabs exist on a variety of aspects and elevations. There is lots of facet growth from the sustained cold, making the lower snowpack generally weak. Crust layers, surrounded by weak layers of well developed facets, are buried in some spots anywhere between 50 and 100cm.
View Avalanche Observation Summary (NEW!) Weather Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
A low pressure system will bring 10-20cm of snow on Monday. Temperatures warming to -2°C at 1500m. Treeline winds moderate from the southeast.
Tuesday, flurries. Temperatures ahhbmround -8°C.
Wednesday, heavy snowfall, with amounts around 20-30cm. Temperatures warming to -1°C at 1500m.
http://www.avalanche.ca/CAC_Bulletin_Forecast?RegionID=3
Primary Concerns:
- Storm Snow: New storm snow with high winds could overload the weak snowpack.
- Wind Slab: New snowfall with wind is producing windslab conditions, particularly on eastern aspects.
- Persistent Slab: The presence of persistent facet/crust combinations within the snowpack gives the possibility for avalanches to step down to deeper layers if triggered by storm loading, or by backcountry travelers.
Travel Advisory Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
Conditions are deteriorating rapidly, as soft slabs build in response to the new storm snow and wind. I would be very nervous of entering avalanche terrain at this time. If you choose to proceed, proceed with the attitude that you will turn back at the slightest sign of instability, like seeing other recent avalanches, feeling whumpfs, or seeing cracking in the snow surface. Safe travel in the mountains at this time relies on avoiding steep, open or lightly treed slopes, convex rolls, and shallow spots where avalanches could be easily triggered. Instead, keep slope angles low and avoid steep open areas. The presence of persistent weak layers (PWLs) in the snowpack means that avalanches may run full path, so stay well away from runout zones and watch for the possibility for avalanches hitting you from above. The weak and complicated lower snowpack is such that the instabilities may persist for some time. Allow yourself wide margins of safety at this time.
Avalanche Activity Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
In areas that saw higher snowfalls, conditions deteriorated rapidly on Sunday morning and avalanches could be triggered at elevations as low as 1500m, in some cases impacting areas that are not usually considered to be a threat. Avalanches are pulling out into the weak lower snowpack and in some cases scouring to the ground.
Snowpack Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
About 30-50cm of new snow overlies a complicated and highly variable lower snowpack. Buried windslabs exist on a variety of aspects and elevations. There is lots of facet growth from the sustained cold, making the lower snowpack generally weak. Crust layers, surrounded by weak layers of well developed facets, are buried in some spots anywhere between 50 and 100cm.
View Avalanche Observation Summary (NEW!) Weather Issued: Sun, Dec 28 Next Scheduled Update: Mon, Dec 29
A low pressure system will bring 10-20cm of snow on Monday. Temperatures warming to -2°C at 1500m. Treeline winds moderate from the southeast.
Tuesday, flurries. Temperatures ahhbmround -8°C.
Wednesday, heavy snowfall, with amounts around 20-30cm. Temperatures warming to -1°C at 1500m.
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