It's a 'new' feature insofar as the entire north Pacific/Bearing Strait have been trending far above average this entire year. For the most part, the entire region has been a similar hue of anomalous orange/red so that's a new feature this year in terms of what we have seen in that small, specific area. In my unsubstantiated opinion, I think a lot of deep, warm water is flowing into the arctic this year, and when I see random cold pools like that I like it is driven by upwelling.