Sure seems that way.
That is why next winter I will believe it ( HL blocking ) when I see it. I put little faith in any seasonal calls by anyone, or any model. Too much chaos and maybe the way things roll now with warming, well maybe analogs will be going the way of the Paleo diet. Get it ? Paleo=caveman=extinct ......
This pattern give or take a little imagination I think would have provided an historic series of winter storms in ther Mid Atlantic. Can't be positive, but wow to the depth and the longevity of the deep -AO and the -NAO.
Someone pointed out to me this May's -NAO, targeting the present NW Atlantic SST configuration, cold pool, etc., may be a signal for next winter's NAO to be negative.