Find a site close to your destination. The current flows are depicted as a line. 4 year avg flow is indicated by triangles. @ dayton shes running about 5000 cfs above normal.
Cubic Feet Per Second (cfs)
A unit expressing the rate of discharge (or rate of flow) of water. One cubic foot per second is equal to the discharge through a rectangular cross-section one foot wide and one foot high, flowing at an average velocity of one foot per second. One cubic foot per second equals 448.8 gallons per minute, and 1.98 acre-feet per day.http://www.fws.gov/mountain-prairie/wtr/hydro_def.htm