Alud

Echo Lakes & Ralston Peak

Avalanche.org observerCentral Sierra Nevada
Ver en el mapa
Foto de la observación 1Foto de la observación 2Foto de la observación 3Foto de la observación 4Foto de la observación 5Foto de la observación 6

Quick report

Tour from Echo Lakes Sno-Park (9:30am) to Ralston Peak via southern side of thinning Echo Lakes to Ralston’s NE Ridge. Quick west-side recon ski to 8700’ before exit via eastern ridge hike/scramble and traversing ski descent back to mid-Lower Echo Lake (8pm). Reasonably supportive and efficient (tho quickly-dampening to skins) travel conditions all day, albeit much by boot pack due skin malfunction. Ski portions were very stable, though most likely shedding locations occurred after shadowing/surface cooling had begun. Large cornice failure observations and remaining ones on North and East cirque kept me very cautious with route-finding both below and on top of them. Finally, avoided being on top of Echo Lakes proper on ascent bc unfamiliar with such travel here. On return, noticed fresh skate-skiing tracks so cautiously followed suit (w deployed whippet at the ready jic). No issues and track still felt very supportable most of the time, though did feel a couple minor settlings and noticed a number of surface ice cracks revealing mix of water and ice below which pole couldn’t push thru.

Avalanche

D1-2 Cornice Fall and Rollerball-induced Loose Wet Point Releases on E-NE-N aspects between 8-9.2K’ in Ralston’s North & East cirques. Also noted a fresh-looking sizable east-facing wind slab crown immediately below corniced ridge lip, but as I never saw a debris field, think just a perfectly sheltered and well-preserved historical crown.