Lake Erie Tributaries — River Levels & Flows

Steelhead Alley — the Ohio, Pennsylvania and New York streams running north to the lake. Big Buoy shows live USGS river gauges across OH, IN, NY, MI, PA, with stage, flow and a 7-day trend for each, plus National Weather Service flood categories where they are published.

About Lake Erie Tributaries

Lake Erie’s south shore is fed by short, steep streams that run only a few dozen miles from the divide to the lake, and that shortness is what makes a gauge here worth reading. They come up within hours of rain, carry shale and clay that colours them quickly, and drop and clear just as fast — so the level and how recently it moved tell you more than the number on its own. Anglers call the run of them from Ohio through western New York Steelhead Alley, and the fish are lake-run: they push in on high water from autumn through spring rather than living in the stream year round. The western end of the lake reads differently. The Maumee and the Sandusky are large, low-gradient rivers draining farmland, and they hold colour for days where a shale creek clears overnight. Not every well-known stream is measured. Elk Creek and the Ashtabula carry no gauge at all, so the nearest useful readings are Conneaut Creek and Walnut Creek — read those as an indication of what the region is doing, not as a reading of the water you are standing in.

How to read these gauges

Flow (discharge, in cubic feet per second) is comparable between gauges and is usually the better number for judging whether a river is up or down. Stage is the water height in feet above each gauge's own local datum, so it is local: the same 4 ft describes different rivers at two different gauges. Readings older than three times a gauge's reporting interval are shown as last reported rather than as current conditions, and a gauge that reports nothing is shown as not reported — never as zero.

Data: USGS National Water Information System. Flood categories: NOAA/National Weather Service.