| Trigger | Unknown | Remote Trigger | Unknown |
| Avalanche Type | Unknown | Aspect | Northwest |
| Elevation | 3400ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | 200ft |
| Vertical Run | unknown |
Avalanche: Chugach State Park
Location: Glen Alps - Blueberry Knoll, Chugach Front Range
From Glen Alps PL toured up the NE aspect of Blueberry Knoll and onto the southern aspect of that ridge. Noted old avalanche debris on the east end of the “Wind Tunnel” below Flattop. Also an avalanche crown adjacent to the Flattop just below the summit. See avalanche report.
Avalanche Details
Observed an avalanche crown on the NW aspect of Flattop, a short distance below the summit and to lookers right of the Flattop trail (pic).
Avalanche had to have occurred sometime after the 12/15 snow event. Also observed older avalanche debris near the East end of the "Wind Tunnel" (pic)
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observer Comments
Recent avalanche on Flattop.
Weather
Partly cloudy. Calm on flats, but gusty N. wind 10-15 on ridgetops. At 1400 was 15deg at Glen Alps weather station.
Snow surface
Abundant wind slab on southern aspects (pic). S. aspect undergoing more wind loading during tour.
Snowpack
Did quick pit on S. aspect just below ridgetop. HS = 94cm. SA = 18deg, Aspect = 214. STMQ2@40cm down, CT15Q2@10cm down. CT15 broke at base of 1F wind slab over 4F rounds. ECT inconclusive.
Avalanche crown, NW aspect Flattop
Flattop avy plus some debris on the east end of what we call the Wind Tunnel