Is this smoke damage or a disease in my Rising Sun Redbud?

Asked October 1, 2020, 1:50 PM EDT

Hello, I noticed this process happening on my Rising Sun Redbud in the last 4 weeks. I left for a trip late August and the tree looked healthy. I returned in the midst of the smoke and noticed these changes with the plant. I live in the city of Portland. Thank you for your help!

Multnomah County Oregon

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