| Trigger | Snowboarder | Remote Trigger | No |
| Avalanche Type | Unknown | Aspect | South Southwest |
| Elevation | 2500ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | 400ft |
Avalanche: Chugach State Park
Location: N side of Eagle River Valley
Appears that a boarder triggered a wind slab between 3/4 and 3/6 on the ridge above the Mile High Saddle trail. Debris stopped about 50′ short of the trail, about 400′ vertical feet below the crown (this path was similarly triggered in 2021, sending debris across the trail). Lots of wind effect in the area from recent E, N, NW winds. Numerous sun-triggered wet loose releases in the area from E to S-facing rocks on 3/6.
Avalanche Details
Sometime between the afternoon of 3/4 and morning of 3/6, a wind slab avalanche was triggered on the shoulder of the ridge that runs E from Mile High Saddle. A snowboard track goes into the crown on the S/SW-facing slope and out the side of the path a short ways below. Viewing the slide from some distance, estimate max crown depth around a foot, width about 30'. A stiff NW wind blew through here on 3/3, additional winds with N component likely since.
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Recent strong wind and snow surface indicative of wind loading on the leeward slope where the slab was triggered. For afternoon of 3/6, numerous point releases from rocky areas with strong solar warming.
Weather
Bluebird, calm, upper 20s to low 30s F.
Snow surface
Highly variable surface of wind- and melt/freeze-affected snow.