YESTERDAY:
Friday Jan 8, 2021. Sunrise was at 08:09 Hrs. -4 with a 15-30 KPH ESE wind. -1 in the valley.2240 meters -10, Winds were 20-25 KPH SE--Horstman Hut
1860 meters -8, Winds were 5-10 KPH E --Rendezvous
1570 meters -9, trace in 12 Hrs, 4 cm in 24 Hrs, Base 158 cm--Catskinner
FORECAST:
Weak ridge of high pressure will shift East today in a North Westerly flow aloft. Sunny breaks this am with increasing cloud cover this afternoon, a weak front arriving tonight with light precipitation. The FL will climb up to around 800 meters. Light precip continues into Sunday with a vigorous front arriving Sunday night. Atmospheric river arrives with moderate-heavy precipitation, strong winds, and warm temperatures into Monday. Likely a break in systems Monday afternoon before another wet event moves onshore into Tuesday. The FL on Tuesday could go up to 1600 meters, more on that in Monday's post. Guesstimates: 8-12 cm by Sunday am, 18-22 cm by Monday am, 35-45 cm by Tuesday am, 25-35 cm by Wednesday am.
AVALANCHE ACTIVITY:
Three people have died after avalanche hits Russian Ski resort. Article below. Net Pic
Avalanche Summary
On Thursday there was a report of a remotely triggered (from a distance of 20m) size 2.5 deep persistent slab avalanche on a west aspect at 1930 m on Cowboy Ridge. The fracture line was up to 200 cm deep. This avalanche subsequently sympathetically triggered an additional size 2.5-3 deep persistent avalanche about 50 m below on Cowboy ridge.
On Wednesday there were numerous size 2 explosives controlled storm slab avalanches reported running in the alpine and treeline. As well there were several persistent and one deep persistent slab size 2.5-3 ranging in depth from 100-150 cm.
Snowpack Summary
Over 150 cm of recent storm snow from the past week has seen extensive wind effect at upper elevations, with scoured windward aspects, wind slabs in lee features and growing cornices at ridgetop.
The snowpack is currently quite complex. The layer of greatest concern is a melt-freeze crust from early December, found around 100-200 cm deep in the snowpack. This crust may have surface hoar or sugary faceted grains sitting above it. There have been several recent large natural and human triggered avalanches on this layer and new snow loads as well as large loads from storm slab avalanches have potential to trigger these layers.
INFORMATION & OBSERVATIONS:
LOCAL AVALANCHE CANADA MIN REPORTS:
Kees & Claire Approach Avy: Jan 7, 2021
Husume: Jan 8, 2021
Joffre Shoulder: Jan 8, 2021
VIDEOS:
An avalanche hits a Russian Ski Resort: Norilsk
Powder Picker Jan 8, 2021: David Jones
ARTICLES:
Three people have died in an avalanche at Arctic Ski Resort: Russia
Snowboarder killed in an avalanche near Park City: Utah
2 People caught in avalanches on Friday: Colorado
Avalanche blocks road near Atal Tunnel: Northern India
Mountaineers are surprised by avalanche that buries one up to his shoulders: Spanish Pyrenees
"Dial it back" in the backcountry say SAR Teams: Pique
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