Chester lake Couloir

No whumpfing or other signs of instability. Minor sluffing but nothing else. Hard non reactive wind slabs observed, with very poor ski quality in the fan and ski quality ranging from good to poor in the Couloir. -19 when we left the car, at 7am, +3 at 1pm. Sun seems to be packing a punch now. Report is for March 20 but would not let me choose that date.