The gauge for the Middle Fork of the Salmon is located at mile 34.45 near the Middle Fork Lodge. This gauge was installed in 1973 so there is lots of historical data associated with it. The levels are reported in both CFS and feet, however, the foot gauge is far more common when discussing flows.
Middle Fork of the Salmon Flow
The link to the gauge is located here, and an embedded graph is below.
Middle Fork of the Salmon forecasted flow
The two gauges below is the forecasted flow and is provided by NOAA.
What’s considered high and low water for the Middle Fork of the Salmon?
Most consider 5 feet and above as high water. Low water there’s more variance, but 2.5 feet would be the upper end of a low water designation. At both high and especially low water, groups often consider flying into Indian Creek Airstrip to avoid the upper section of the Middle Fork of the Salmon.