What are you thinking?? That it will be awesome?
Run off on the Middle Fork of the Salmon.
But if you are really trying to nerve yourself out then maybe you should cancel now while you won't be penalized.
As I mentioned a couple of places, we are almost exactly on par with 2009 in terms of SWE ( stored energy of the water at a couple of key places) and the Salmon drainages are running 120 to 145 percent of normal. In the southern end of the drainage (where the MF starts) it is closer to the 120%. Murphs and Velvet have the potential to kick your ass at any flow we have this year mid June. Look at the streamflow vs runoff charts that have been posted, it's no lie. Five feet really isn't that different from 6 or 6.5. Beyond that it changes a bit, but you will almost certainly be on the down side of the peak by 10 days or more. And...it's warming up this weekend and next week. Look for another increase in flow over the weekend and week to correspond.
Relax. It will be a blast.