I had some ash at the cottage that was left over from about 10 years ago. After some wet rainy weather, it would act the same...kinda sizzling when burning. But not weeping moisture like the stuff in your pics. That left over stuff is stored outside. I learned awhile back that you have to choose your pieces carefully due to the fact that they will pick up moisture...…. What I end up doing is bring in an armload inside and that seems to eliminate the problem. Maybe that'll work for you?
All my wood is brought in about a month before it gets burned. Then I keep about 3 days worth rotation next to the stove.
OK, guess that blows that theory out of the water! That 3 days next to the stove should about take care of any leftover MC. Wait, you don't store them in the kitchen sink for a month do you? No, I guess not. Well, the wood is still too wet then.
I’ve had the same exact experience even with 3 year seasoned Ash. When first cut it is dryer than most other species that is why people with smoke dragons love it. For me it has to dry at least 3 years to be burned.
Too covered but did water run down the sides of your stacks? Are the boiling ends recently re-soaked from rain?
From the book "Norwegian Wood: Chopping, Stacking, and Drying Wood the Scandinavian Way" by Lars Mytting, page 46 of the English edition in the sub chapter "Wood That Never Dries", from research done at the Norway Forestry Research Institute: "...deciduous trees for which the drying conditions are poor at the outset, the moisture content never falls to the level it does in timber that has been dried quickly... The transporting of moisture out of the tree is impeded, and even when conditions are improved, the drying never really gets going as it should." Most of the wood I cut is dead/downed/seasoned but not dry. I c/s/s and dry for 2 years. If the wood does not burn well, then I leave the wood to dry one more year in a row section. After that, the wood gets burned good or bad. Some of the wood just never burns well but then some will melt down my furnace if I am not careful .
I've only had White, that I know of, but I would think Green would dry faster since it is not as dense.