The National Geological Survey operates stream gauges on Lake Erie tributaries.  Monitor water flow and temperature that draws fish into the stream and suits your fishing presentation. 

USGS Water Gauge on Brandy Run (A small tributary to Elk Creek)

USGS Water Gauge on Walnut Creek (Lower Walnut Creek PAF&BC Project Water)

USGS Water Gauge on Cattaraugus Creek at Gowanda, NY

USGS Water Gauge on Grand River near Painsville, Ohio