A ski cut entrained recently warmed storm snow over cold snow, running 300'. This did not initially run to the existing facets, but entrained much storm snow SS-AR-R1-D1
Signs of Unstable Snow
Inversion conditions warmed up ridgelines by lunchtime with snow falling from S2 to S5. Natural storm slabs were rapidly building and could be triggered by skiers, as evidenced by a ski cut that produced a SS-AR-R1-D1 and concurrent observations near Arrowhead and Skyline Ridge with similar and larger results.
Observed Avalanche Problem #1:
Storm slabs are likely to step down into persistent layers that precede peak snowfall on the 27-28 Feb.