Lake Powell is dropping nearly a foot every five days so yes, things will be lower. Try and get that picture up if you can, also definitely post a trip report when you get back. I'm most interested in the amount of current you have to the take out. Looking forward to getting back on Cat next May....lake should be really low by then!
Lake Powell Water Database
On a side note, amazingly Lake Powell has only recieved 74% of last years total inflow to date....this year is actually projected to be the lowest total inflow on record for Lake Powell. As much as people thought this year was WAYYYY better than last year, it doesn't really appear to be the case.