Quick report
- Red Flags
- Recent Avalanches, Heavy Snowfall, Wind Loading, Cracking, Poor Snowpack Structure
- Red Flags Comment
- <p>Early time spent near the PC Ridgeline had poor visibitliy and the New Snow was only 5 inches deep. Still Cornices were quite sensitive and easily shearing from approachment. It is a good assumption that by late in the day the combination of more New Snow, the Winds and the Lingering PreStorm Weak Surface Snow were promoting reactive Soft Slabs. Sluffing in the New Snow was observed even by Mid Day. Avalanches as reported by White are indicative of the Poor Snowpack PreStorm Surface Weaknesses and Structure</p>
Snowpack
- Instability Comment
- <p>Wind Slabs resting on PreStorm Weak Snow appeared to be the main Problem initially today</p> <p>Soft Storm Slabs resting on the PreStorm Weak Surface Snow will combine to present issues more closely related to Persistent Slab. Up to 10 cm of PreStorm NSF's were observed on the Shady aspects off the West Willow Ridgeline. With the continual Heavy Snowfall that was occurring in the late afternoon until 2100 hours at this writing this problem was obviously seeing an Increasing Trend for Widespread Reactive and Sensitivity. </p> <p>Danger Rating in the morning hours was Moderate for Wind Slab acitivity as described above. Yet, by late afternoon it appeared to escalate to Considerable. Depending on the extent of the Winds and more Snow overnight it may escalate to High if these factors continue to stay active at the rates observed at 2000 hours.</p>
In exposed areas with SW-W aspects the Winds had stripped off much of the Storm Snow with the PreStorm M/F Crust either on the surface or just barely buried. As the day proceeded these Crusts and inconsistencies became more covered. Riding got progressively better as the day went on, and by 1400 with at least 9 inches of New Snow it was very good.