This was discovered this morning.
If he didn't go down in the high winds over this past weekend, then I doubt any wind there was last night caused the fall. My suspicion is that he got into a fight with a racoon and lost.
It broke at the same location it had before. I'd superglued it back together. Looks like it did not hold. After closer examination, there are a couple more holes and damaged spots. I am of the opinion he has lost his last fight.
The dirt was in it for weight and stability.