I just planted a ton of new trees last weekend. We are expecting a serious storm, possible tornados. For sure hail. The hail is what concerns me the most. The trees are brand new, whips. Some of them have a few leaves so far but the majority don't. Will this damage them overly much? I can't cover them all but man would I like to.
We had a small hail storm a week ago, just as many of the trees were in full bloom and some of the early crops were just sprouting true leaves. After a quarter of an inch of pea sized hail battered them, I thought well... so much for apples and kohlrabi. But, it looks like it'll all be ok. New leaves are growing on the tiny stems of the beaten brassicas and it seems that apple blossoms can be quite tolerant of a beating if it's at just the right time.
Any of the trees that lost leaves seem to be recovering and even some of the ones I thought were done for, seem to be putting up new shoots.
At the very least this will be a learning experience. If you can protect only some of them, choose those that are most likely to catch hell.
I once dropped a 50+ foot tall tree directly on top of a recently planted plum tree. While the part above ground was damaged quite badly, the roots were completely unaffected and today you can't see see any difference between the tree that was damaged and the other nearby trees that were planted at about the same time. One thing I would suggest is that right after the storms you go out and turn any jagged tears in the branches into clean cuts.