Great video, and reminder. Don't forget that last Sept, when we were on Lake Powell, 20 people died in the Utah/AZ area from Flash floods--and often the rain was some distance from the point where they were killed!
The canyons are wonderful places at Powell, but when major rain is predicted, we move out into wide open, but protected places. One of the reasons Oak Canyon is one of our favorites. You can find a place where you are sheltered from the wind driven waves, yet safe from flash floods. What Potter Water notes is so important. A benign cliff can all of a sudden be a huge waterfall, which would sink a boat. Plus the rocks on the rims are far less stable and more likely to fall. On several occasions we have seen large boulders fall from the top. Be aware! Enjoy!