| Trigger | Snowmachiner | Remote Trigger | 0 |
| Avalanche Type | 0 | Aspect | Unknown |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Turnagain
Location: Seattle Ridge
The first day of snowmaching – in 18 months! – on the Chugach National Forest occurred yesterday. Route was the Seattle Ridge up-track to Main Bowl (1st Bowl).
Avalanche Details
There was a report of a remotely triggered avalanche in 2nd Bowl (Juniors Bowl). Limited visibility hampered a look at this reported slide.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Other than the report of the avalanche, we had no other signs of instability.
Weather
Cloudy skies turning obscured by the afternoon. Winds light from the East and temps near 20F.
Snow surface
At the parking lot elevation around 8" of light snow sits over a crust. Above 2,000' around 24" of storm snow sits over the Thanksgiving crust.
Snowpack
We dug a pit in Main Bowl around 2,700'. Total snow depth was 140cm (~4.5'). ECTX, no failure in any layers. There were facets below the storm snow but they were not reacting. This goes along with the many triggers out there today with only one avalanche that we know of.
Opening day for motorized use at Turnagain Pass!!
Snow pit at 2,700'. ECTX - no results.