Quick report
We traveled up Cave Ridge from the Alpental Beacon park, descended into the Cocaine Couloir, then traveled up the ridge toward Snoqualmie mountain, exiting via the south face of Snoqualmie Mountain and eventually back down Cave Ridge. Weather was foggy, wet, and relatively warm, with almost no sun or wind, except on the ridge. We saw lots of snow shedding from the east wall of Cocaine Couloir and from trees as the weather warmed up. Conditions overall were very stable, with 3-6 inches of heavy snow creating poorly consolidated roller balls as we ascended above 5000'. There's a notable weak layer above the Early Feb Crust that would collapse underfoot while skinning, but was not reactive on most aspects, even on slopes >35 degrees. The exception to this was the south aspect of Snoqualmie Mountain above around 4500-5000' where a hard smooth surface (probably the EFC or just above it) was very reactive and produced shallow (2-4 inches), wet slabs on aggressive ski cuts. These didn't propagate laterally, but entrained enough snow to knock you off your feet. Seeing a few of these caused us to change our descent route and follow the ridge down rather than skiing fall line above cliffs.
Avalanche
Snoqualmie Mountain above around 4500-5000': unintentionally triggered a few 2-4 inch thick wet slabs on aggressive ski cuts. These ran on the EFC(?) and over cliffs below us, but stopped on shallower slopes, or became roller balls. These were primarily a hazard due to their location above cliffs.