There is no distinct shortwave on the 6z run, just a broad lobe of strung out vorticity.
PNA ridge is a bit too amped with the axis further east. Not enough dig.
The 23rd should be interesting, even if it doesn't produce much snow. Not sure we won't see some significant changes from what's currently being depicted. Kinda hoping to see something a bit unusual, with at least a little shot of snow.
I still think the 26-28th window should present a chance for a coastal storm with cold established. 12z EPS strongly hinting, as have previous runs of the GEFS.