Weekly Great Lakes Water Levels An update on current water levels conditions, weather, and outflows and a forecast of water levels over the next month.
Connecting Channels Forecast Forecast of water levels on the St. Marys, St. Clair, Detroit,and St. Lawrence River shipping channels, updated every Thursday afternoon.
Monthly Bulletin of Great Lakes Water Levels Six-month forecast of Great Lakes water levels. This page includes downloadable Adobe pdf documents displaying the six-month forecast.
St. Lawrence River Forecast U.S. Army Corps of Engineers, Buffalo District, St. Lawrence River Water Level Forecast