I've seen crabapples and cherries stressed out after wet springs, but usually that's an allover leafspot type of look. I've never seen quite this look before:

Some branches are fine and some are gonzo. I think this is a crabapple or maybe a hawthorne. This was it May 23:

I took a closeup of the flowers because I once had tried to ID the tree and didn't have flowers at the time. I thought flowers would help me ID it in the future.

It just dawned on me I should probably go look to see if it has crabapple berries. Oh but do hawthorne's produce berries too?

There was a thread somewhere about the ID with better pictures of leaf and branch form, but I can't find it.

But regarding the brownout... do you think it's knocking on heaven's door? Any prognosis?

not my tree... it's a few doors down in the neighborhood

and it was a wet rainy spring. A kwanzan cherry a few doors down in the other direction had significant shothole and leafspot, but seems to gotten through the worst of it.