Wind loading and shooting cracks
From facebook message: "Strong winds and heavy wind loading. Cabin creek below skyline ridge. 1/12/24. Was seeing Shooting cracks all day."
From facebook message: "Strong winds and heavy wind loading. Cabin creek below skyline ridge. 1/12/24. Was seeing Shooting cracks all day."
From Obs: "Saw a natural avalanche on the east side of Henderson from the Lulu Pass Rd. Also observed a natural on the east side of Sheep Mountain. These likely happened during or near the end of the last storm on 01//10. "
From obs: "A natural avalanche on the east side of Henderson from the Lulu Pass Rd. These likely happened during or near the end of the last storm on 01//10." Photo: R. Youngbar
Saw a natural avalanche on the east side of Henderson from the Lulu Pass Rd. Also observed a natural on the east side of Sheep Mountain. These likely happened during or near the end of the last storm on 01//10.
From obs:
"Widespread collapsing and cracking. The collapsing was not especially audible, but the cracks often shot out 50-100' spectacularly- while setting an uptrack, and on descents. The collapsing and cracking was much more pronounced above 9600', and was happening on the new/ old snow interface. This was somewhat surprising in this location, because the old snow surface was Very heavily tracked by snowmobiles prior to this storm cycle." B. Fredlund
"Collapsing, shooting cracks (30ft+), and whumpfing noted while breaking trail on the W aspect of Henderson. Frequency increased with elevation. " Anonymous
A skier triggered an avalanche on Miller Ridge from the flats above. Photo: B. Fredlund
From email on Jan. 12th :
"The avalanche is on Miller Ridge, on an easterly aspect, around 9k'. Crown appears to be about 2' deep.
I toured around on SWerly aspects, near Daisy Pass, up to 10k'.
Widespread collapsing and cracking. The collapsing was not especially audible, but the cracks often shot out 50-100' spectacularly- while setting an uptrack, and on descents.
The collapsing and cracking was much more pronounced above 9600', and was happening on the new/ old snow interface. This was somewhat surprising in this location, because the old snow surface was Very heavily tracked by snowmobiles prior to this storm cycle.
New snow: was finding about 40cms settled on top of the Jan. 5th interface. Slightly upside down with the wind from last night. 4F- over F.
Weather: cold temps. It cleared for about 45 minutes late morning, and then clouded over again. Moderate winds from the west, but strong and blustery at times, creating temporary white outs."
GNFAC note: the avalanche on Miller was previously reported here.
From Obs: "Broke loose a slide just below the radio tower standing above the crown. Broke about 30 cm down on a layer of weak snow."
A skier triggered an avalanche on Miller Ridge from the flats above. Photo: B.
A skier triggered an avalanche on Miller Ridge from the flats above. Photo: B.