Originally Posted by KSC
I've gotta ask. Barometer gauges?
Start with the flow at the Gunny @ GJ gauge
Subtract Gunny @ Delta
And subtract Uncompahgre at Delta
If what's left is >500, it's an ELF flow.
>700 is good for sallies like me that enjoy the top 3/4 of the run but have yet (yet!) to run the takeout gorge.
>1000 and it's all on, pretty healthy from what I can tell.
I've only been paddling it for ~5 years, so take this with a grain of salt worthy of such noob forecasting. There are certainly nuances to this -- like timing when each diurnal bump hits each gauge -- but the above is a good start.