Quick report
I visited Cascadilla Creek on a day off to take advantage of the clear weather and photograph large fracture lines on the northeast face of Nyack Mountain.
- Recent snow and wind are beginning to fill in the multiple crown lines, but these features remain noticeable.
- I can not verify if the crown spanned the entire face from ridge to ridge. If not, two very large hard slab avalanches cover most of this face's 2000-foot width.
- This morning, I found 6-10 inches of recent, dry surface snow on north and south aspects at mid-elevations.
- Warming temperatures and intense solar radiation moistened the surface on slopes receiving sun. However, I only noticed a few rollerballs and pinwheels upon my exit at 1400.
- No new avalanches were noted in this drainage since my last visit on March 2.
Weather
- Air Temp
- 28
- Cloud Cover
- few
- Wind Loading
- light
- Rain Elevation
- 3000
- Recent Snowfall
- 0
- Snow Avail For Transport
- moderate amounts
Mostly clear and sunny. Temperatures in the shade remained cool, but the March sun was quite intense.
Avalanche
- Size
- D2 R2
- Type
- C
- Aspect
- SE
- Trigger
- N
- Elevation
- 6000 ft
A lengthy section (100+ feet) of the cornice failed and appears to have removed a depth of 10-15 feet. The debris did not trigger a slide below the cornice, although the large blocks trundled a long way downhill. The slide was denoted as a D2 due to the large blocks, which could have injured someone.