Exactly. What are the verification scores for the Euro weeklies on temps 1-4 weeks out? How about those DJF temp maps? I honestly don’t know, but I would be surprised if they were high.
What sea of warm? Last I saw, all these long range temp predictions were saying about an average December, which is cold enough to snow where I live at least. Forecast has 7 of the first 13 nights of December below freezing here.