Manto nevoso

4 Seasons to base of Ghost Trees

Sierra Mountain CenterEastside Region
Vedi sulla mappa

Quick report

We observed active wind loading primarily on NE slopes but with minimal precip and dry snow, slab formation wasn't an issue. No instabilities observed. Only red flag was moderate to strong blowing snow loading NW to E leeward zones, as well as isolate minimal cracking beneath skis on a test convexity, but minimal precip (10-15cm HNS at 9500ft, dry snow) kept substantial wind slabs up to this elevation from forming. STT and shear tests showed some bonding of early storm snow to underlying, supportable (P / K) crusts.

Weather

Air Temp
25
Cloud Cover
broken
Wind Loading
moderate
Recent Snowfall
10
Snow Avail For Transport
moderate amounts

Snowfall ebbed and flowed throughout the day at no more than S1. Air temp stayed just below freezing but was pleasant enough even with wind chill. Periods of partial sunshine followed by OVC skies. SW winds 10-20mph.

Snowpack

At 9600ft, N and NE aspects that hadn't released in the previous avalanche held 60cm strong P snow over 40cm of F hard facets buried about 1m down in the snowpack. Avalanche debris was still very evident below the Ghost Trees from the last big storm event, and probing on these slopes showed that crust/facet combos were still present as part of the bed surface.