Eh, it's a quick pick off google. You make a good point. Looking at the pic there isn't much cracking. A lot of the bark has lifted though. I'd bet the weathered wood is drier than the other pic of fresh wood. The real question in the weathered pic is bark up or bark down. All but 2 of his/her splits are bark is up.
Matt
My impression was the same. Grey wood = weathering, but I see little amount of checking which is a better sign of dryness. I have a stack of madrona that is all grey on the ends but I know it is still too young to burn.