It's too hard to say definitively without some research/attribution of what is going on currently.  I will admit I think the recent (May) arc of the teleconnection emanating from the Pacific Ocean is suspiciously El Nino-like.  We saw increased troughing over the N. Pacific Ocean, increased ridging over Canada, and, then an anomalous trough (and cooler weather) over the eastern U.S.  If it weren't May and it was the dead of winter, I would be more confident it's El Nino.  But I would not expect such patterns so early on.  But it's still interesting.