Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Kameron DH
Observation Date:
November 27, 2022
Submitted:
November 27, 2022
Zone or Region:
West North
Activity:
Skiing/Snowboarding
Location:
Table Mountain Circuit

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
NTL/ATL
Aspect:
NW
Comments:
Size 2 natural wind slab avalanches were observed on S, W (lookers right of "iceberg bowl") and NW ("pond shot") aspects of Table.

Signs of Unstable Snow

Did you see shooting cracks? 
Yes, Isolated
Did you experience collapsing or whumpfing? 
No

Observations

Clear evidence of widespread wind transport across many aspects from the recent snow. It extended into the NTL as well. Trailbreaking was difficult with upside-down denser storm & wind slab atop softer snow (from Friday?). We decided to elevate our assessment of NTL hazard to considerable due to these observations. Probed near 4300' in the Wells drainage and found 100 cm HS. Lots of early season hazards were around. Upon return to Bagley basin, we saw many tracks in the Blueberry chutes as well as E facing slopes of Table lookers left of Herman saddle. The lack of skier-triggered crowns even in steep terrain offers evidence that the snow is stabilizing quickly.

Media

Cracking in a turn
Snowpack increasing at Artist's point
Large avalanche initiated near rocks (crown faintly visible) that ran over the usual S side Table skintrack
"Pond shot" large avalanche, size 2, 200' wide, ran to margin of Mazama lake
Large wind features near Herman saddle
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