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Northwest Inland

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Starr Basin Obs

Published: Mar 21st, 2026
5 nights in Starr basin. As expected, spicy conditions at the beginning of the week, with tapering and good stability by the end. Monday: we had sudden planar failures on block isolation at storm slab interface with previously faceted snow surface. Also ECT12 on the Feb crust facet interface, but a pop, no planar propagation. Lots of shooting cracks in upper 80cm storm snow. Conditions made travel very difficult with thigh deep trail breaking, and knee deep ski pen. Tuesday: observed one size two storm slab in steep, east facing open trees from last 12 hours. Snow tests and pimple popping shoes improved stability with no shooting cracks. Moderate ECT results on storm interface, and hard results on Feb crust. Skiing improving with 45cm ski pen, and consolidation Wednesday: hard results on compression and ECt tests in storm interface, no results on Feb crust (now down 120cm). Freezing by level reached 1450m. Big wind event over night from the south. Overnight, snow finally stopped, with a storm total of >120cm in the basin. Temps cooling to -7 over night. Thursday: broken skies showed evidence of a widespread avalanche cycle up to size 2 in the alpine terrain around Starr basin. Prinaily wind slabs, with some entrainment of storm slabs in steep alpine terrain lee of winds. A few small cornice failures looks to have also occurred. Slides did not run very far to terminated at top of run out in most cases. Alpine slopes with south, and east aspects hit hard by wind the preceding night, and scoured in places to Feb crust. Friday: stability continues to improve with colder temps. No results in tests on storm slab or Feb crust, and no avalanches observed in past 36 hours. Ski pen now 30cm in cold, lovely snow. Ski quality amazing. Saturday: skied a dawn patrol on incredible steep, NE terrain at treeline in lovely, fast snow. Flew out and on trip to Smithers continued to observe numerous size 2 - 2.5 avalanches in steep alpine terrain on E, NE, N, NW aspects