I was searching around on the Corps of Engineer webpage and found this great URL for tracking water levels on Pool 3 at Prescott. Try this out: http://www.mvp-wc.usace.army.mil/dcp/PREW3.html
You can set the graph for any time period you want. Set it for 2 months and you can see the dramatic rise from all the rain. We were at 675.5 feet on 23 June which was pretty good and then the rains came. I use about 675 for a normal pool elevation so you can measure from there about how high the river is. It looks like the river is starting to come down about 6 inches a day. We should be back in good shape in no time at all.