health of old elm tree
In the photo, you see a large crack in the tree. Where a wider opening appears in the bark (in the red circle), I inserted a tape measure into the crack. It went in about 22 inches. And, you see that the crack line progresses upward and slightly to the right as it approaches the point where the trunk splits.
I am inclined to think this is a sign the tree may split apart during a windstorm and either half or both halves could fall. Any opinions?