My speculation: Those peaks are much too abrupt and short lived to be from the dam release 150 miles upstream of the Green River gage. By the time a 6-hr release pulse got to Green River it would be smoothed out much more and probably not even noticable. For instance, look at the Green below Flaming Gorge, and you'll see a big daily fluctuation, that's completely smoothed out by the Green River UT gage. Likely those spikes are from flash floods not too far upstream from Green River. Especially with the Yampa kicking in lots of flow.
Don't camp anywhere near dry washes unless you're really confident it's not going to rain anywhere in the region - I've heard a really bad story about some folks getting badly hammered by a flash flood on Deso.
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse