Avalanche

Tweener Ridge

IMSARUGalena Summit & Eastern Mtns
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Quick report

We did not experience any cracking, collapsing, or whumpfing. We did not encounter any wind slab but did see some evidence of wind transport. The storm snow in this area is not consolidated enough (yet) where we observed to create a slab problem, but we expect danger to increase with continued precipitation and consolidation. Recent very small avalanches of new storm snow seen along Highway 75 near Smiley Creek (R1 D1) but no signs of instability during our day out on Tweener Ridge.

Weather

Cloud Cover
overcast
Recent Snowfall
13 in

Snowpack

Multiple CT test resulted in fractures under 10 taps that were mostly resistance planar (RP), with one getting closer to sudden planar (SP) at the new snow - near surface facet or melt freeze crust interface ECT tests did not result in propagation. At 1430, recorded specifically: CT2 RP ↓ 30 cm, ECTN3 ↓ 30 cm. The 1213 persistent weak layer was not reactive. 130-100 cm: Precipitation particles (F) 100-99 cm: Melt freeze crust (4F) 99-80 cm: Near surface facets (F-) 80-65 cm: Facets (4F) 65-45 cm: Facets (1F) 45-44 cm: Melt freeze crust (4F) 44-43 cm: Facets (F) 43-42 cm: Melt freeze crust (4F) 42-25 cm: Facets (4F) 25-0 cm: Facets (1F)

Avalanche

Recent very small avalanches of new storm snow seen along Highway 75 near Smiley Creek (R1 D1)