Yea, I agree too. I find it pretty interesting too that the GFS (and most globals) in general seem to do better in the mid/long range when the northern features (strong NAO, AO, etc) are on one side of the bell curve or the other.
It makes sense: the more stable the input the more repeatable the output. But what’s interesting is the northern component to the consistency.
In this case, my opinion is the only mechanisms of increase for northward movement would be driven by a)not currently modeled relaxation in confluence, b) well timed piece of energy embedded in northern flow exiting at a favorable moment which could lift the barolocnic zone between the approaching SW and NS (which in essence is a relaxation in confluence), c)not currently modeled amplification of the SW which of course, has a cap to how much it can deepen.
I give dc metro a 20% chance of dusting-1”
which would be pretty sweet!