| Trigger | Snowmachiner | Remote Trigger | Yes |
| Avalanche Type | Soft Slab | Aspect | Unknown |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Turnagain
Location: Seattle Ridge - Road side and Main Bowl (1st Bowl)
Several snowmachine triggered avalanches along Seattle Ridge. Around 20″ of new snow from overnight, more than expected. Very little to no wind effect on new snow along ridge.
Photos and information passed to the avy center by Travis Smith. Also, thanks to this crew for clearing off the weather station!
Avalanche Details
Multiple remotely triggered slab avalanches today reported from Seattle Ridge by snowmachiners. These were all around 2' deep and on all aspects and between 2,000 and 2,500'. Suspected weak layer is the 1/10 Buried Surface Hoar. No one known to have been caught. Riders reported that it was very easy to trigger avalanches today and they did not venture into higher terrain.
In the afternoon in the parking lot, this group witnessed what is thought to be a natural avalanche and powder cloud off Seattle Ridge to the looker's left of the up-track. No crown was seen afterward, possibly a loose snow avalanche.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
New snowfall and easily triggering avalanches in the trees.
Remotely triggered from ridge. Widowmaker slide path in SW facing Main Bowl (1st Bowl) on the backside of Seattle Ridge
Another remotely triggered slab - SE facing just under ridge across from Main Bowl
A wider angle look at Widowmaker path with Pyramid Pk in the distance.
Close up on the remote trigger on Widowmaker.