@chumley
This is SO helpful, thank you very much for taking the time to give such a detailed reply. I feel much better with this info and will be sure to keep an eye on the flow rate and the forecast. Much appreciate this!

I know this post is old but am hoping someone can give me some advice. We're camping 2 nights in the canyon in a couple weeks and haven't been there before. I did enough research to know flash floods are more common in summer so chose to visit in spring when I'm hoping it's safer, but I don't know h...