@Suty this doesn't answer the question asked. So I'll ask it differently. How are the forecast plot curves determined? A single forecast for a specific lead time? Or is a combination of forecasts over multiple lead times?

@idefix37
Ok, I can see that could be useful in the case you describe.

But if I want to know which model that on average most accurately forecasts 1, 2, or 3 etc days ahead, that display doesn't tell me that.

Would be worth Windy writing an FAQ on this perhaps.