And just to keep you updated, if you're planning to float the San Juan this week and were worried about these low flows, USGS just (at 10am this morning) measured 550 cfs (not 250, as was showing on the gage! Phew.) So that's good news. He says that at the low end of flows, the rating curve went off the rails. Their page for Bluff has been updated.
Based on the release changes I've made today, flows at Bluff will probably bump around 500 cfs for the next few days, then go up to 600-700 Thursday/Friday, and then come back down to 500 cfs.
That was confusing, so give me a call if you have questions.
Susan Novak Behery, P.E.
Western Colorado Area Office