The way this +PNA is unfolding with the developing Kelvin wave makes me think this will not rush into Strong territory. It's a NorthPacific-ENSO even signal if that makes any sense. Weak-Moderate continuation, although something may happen in the Fall. (The point is, we are probably staying below 1982,1997)
Edit: ie, in strong events you would usually see the NOI bottoming right now, and a off the west-coast or GOA trough.